pyramids . For example, the pentagrammic pyramid has a pentagram base and 5 intersecting triangle sides. Image Pentagram pyramid.png 120px Volume see also Cone geometry Volume The volume of a pyramid ... e7dcc3 colspan 2 Set of pyramids align center colspan 2 Image Pyramid.svg 240px Square Pyramid ... graphs.svg thumb 240px The 1 Skeleton topology skeleton of pyramid is a wheel graph This article is about the polyhedron pyramid a 3 dimensional shape for other versions including architectural pyramids, see Pyramid disambiguation . In geometry , a pyramid is a polyhedron formed by connecting a polygon al base and a point, called the apex geometry apex . Each base edge and apex form a triangle. It is a conic solid with polygonal base. A pyramid with an n sided base will have n 1 ... is above the center of the polygon, an n gonal pyramid will have C sub nv sub symmetry. Pyramids ... tetrahedron , one of the Platonic solid s, is a triangular pyramid all of whose faces are equilateral triangle s. Besides the triangular pyramid, only the square and pentagonal pyramids can be composed ... Square pyramid Pentagonal pyramid Image Tetrahedron.svg 80px Image Square pyramid.png 120px Image ... from the plane geometry plane which contains the base. In 499 CE Aryabhata , a great mathematician ... The volume of a pyramid whose base is a regular n sided polygon with side length s and whose height is h is therefore math V frac n 12 hs 2 cot frac pi n . math The volume of a pyramid whose base is a regular ... the cone by pyramids see Cone geometry Volume volume of a cone . Surface area The surface area of a pyramid is math A B frac PL 2 math where B is the base area, P is the base perimeter and L is the slant height math L sqrt h 2 r 2 math where h is the pyramid altitude and r is the inradius of the base. See also Bipyramid Cone geometry Trigonal pyramid chemistry Frustum References references External links MathWorld urlname Pyramid title Pyramid GlossaryForHyperspace anchor Pyramid ... more details
of a triangle , volume of a Cylinder geometry cylinder , sphere , and a pyramidgeometrypyramid ... theorem , an important result in Euclidean geometry Euclidean and projective geometry . Image Oxyrhynchus ... fragment of Euclid s Elements Geometry lang grc wikt geo earth , wikt metri measurement ... position of figures, and the properties of space. Geometry is one of the oldest mathematical sciences ... century BC geometry was put into an axiomatic system axiomatic form by Euclid , whose treatment Euclidean geometry set a standard for many centuries to follow. Archimedes developed ingenious techniques ... of geometry is called a geometer. The introduction of coordinates by Ren Descartes and the concurrent development of algebra marked a new stage for geometry, since geometric figures, such as plane curve s, could now be represented analytic geometry analytically , i.e., with functions and equations ..., the theory of perspective graphical perspective showed that there is more to geometry than just the metric properties of figures perspective is the origin of projective geometry . The subject of geometry ... with Euler and Carl Friedrich Gauss Gauss and led to the creation of topology and differential geometry .... Since the 19th century discovery of non Euclidean geometry , the concept of space has undergone a radical ... space , point etc. still have their intuitive meaning and abstract spaces. Contemporary geometry ... structure, allowing one to speak about length. Modern geometry has multiple strong bonds with physics , exemplified by the ties between pseudo Riemannian geometry and general relativity . One of the youngest ... of geometry makes it initially more accessible than other parts of mathematics, such as algebra or number ... provenance for example, in fractal geometry and algebraic geometry . ref It is quite common in algebraic geometry to speak about geometry of algebraic variety algebraic varieties over finite field ... to the ordinary sphere s or Cone geometry cone s. ref Overview Image Chinese pythagoras.jpg thumb 300px ... more details
About pyramid shaped structures the geometric term Pyramidgeometry other uses File Giza pyramids.JPG ... List of megalithic sites Pyramid disambiguation for other uses of the word pyramid. Pyramidgeometry for the pyramid as a 3 dimensional shape in geometry. Pyramidion Pyramids of G mar Step pyramid ... thumb right Pyramid of the Moon , Teotihuacan File Koh Ker temple 2007 .jpg thumb right ... Spain A pyramid from Greek language Greek pyramis ref http www.perseus.tufts.edu hopper text ... the outer surfaces are triangular and converge at a point. The base of a pyramid can be trilateral, quadrilateral, or any polygon shape, meaning that a pyramid has at least three triangular surfaces at least four face geometry faces including the base . The square pyramid , with square base and four triangular outer surfaces, is a common version. A pyramid s design, with the majority of the weight ... on top means that less material higher up on the pyramid will be pushing down ... were pyramids first the Red Pyramid in the Dashur Necropolis and then the Great Pyramid of Khufu .... Khufu s Pyramid is built entirely of limestone, and is considered an architectural masterpiece. It contains ... cardinal points precisely and it has an angle of 52 degrees. The original height of the Pyramid ... to build houses and Mosques in Cairo. It is still the tallest pyramid. The largest pyramid in the world ever built, by volume , is the Great Pyramid of Cholula , in the Mexico Mexican state of Puebla . This pyramid is still being excavated. Ancient monuments See also List of ancient pyramids by country disambiguation Pyramid shaped structures were built by many ancient civilizations. Mesopotamia The Mesopotamia ... that the Ancient Egyptian word for pyramid was mer . work The New York Times date 2008 11 17 accessdate ... author1 Lehner, Mark date 2008 03 25 ref The Great Pyramid of Giza is the largest in Egypt ... date 2004 09 09 accessdate 2010 04 12 ref The Great Pyramid of Giza was one of the Seven Wonders ... more details
other Pyramid disambiguation Infobox islands name The Pyramid native name image name image caption locator map Chatham Islands map topo en.svg thumb map caption Map showing location of The Pyramid nickname location coordinates archipelago Chatham Islands total islands major islands area km2 length km width km highest mount elevation m population 0 population as of density km2 ethnic groups country New Zealand additional info The Pyramid is a small island south of Pitt Island in the Chatham Islands group of New Zealand . See also List of islands of New Zealand References references External links Chatham Islands OutlyingNZ geo stub coord missing New Zealand Category Islands of the Chatham Islands Category Uninhabited islands of New Zealand ... more details
File Schlegel wireframe 5 cell.png thumb 4 simplex is a tetrahedral pyramid, shown here as a Schlegel diagram perspective projection In 4 dimensional geometry , a polyhedral pyramid is a 4 polytope constructed by a base polyhedron cell and an Apex geometry apex point. The lateral Facet geometry facets are Pyramidgeometrypyramid cells, each constructed by one face of the base polyhedron and the apex. A 4 simplex is an example of a tetrahedral pyramid . Any convex 4 polytope can be divided into polyhedral pyramids by adding an interior point and creating one pyramid from each facet to the center point. This can be useful for computing volumes. Volume The 4 dimensional volume of a polyhedral pyramid is 1 4 of the volume of the base polyhedron times its perpendicular height. See also Pyramidgeometry References GlossaryForHyperspace anchor Pyramid title PyramidGeometry stub Category Polytopes ... more details
Image pyramid.svg right 240px square pyramid In geometry , an apex is a descriptive label for a visual singular highest or most distant point or Vertex geometry vertex in an isosceles triangle , Pyramidgeometrypyramid or Cone geometry cone , usually contrasting with the opposite side called the base . For an isosceles triangle the apex is the vertex where the two sides of equal length meet. References MathWorld urlname Apex title Apex Category Polyhedra Category Pyramids Category Euclidean solid geometrygeometry stub es V rtice geometr a eo Apekso geometriangle fr Apex g om trie nl Top meetkunde pl Wierzcho ek geometria ... more details
in the Chatham Islands, New Zealand Other uses Pyramid cigarette PyramidgeometryPyramid image ...wiktionarypar pyramid A pyramid is a building with triangular walls. Pyramid may also refer to TOCright Anatomy and medicine petrous part of the temporal bone , the pyramidPyramid brainstem , the anterior part of medulla oblongata Games and sport Pyramid card game , a game portrayed in Battlestar Galactica Pyramid solitaire , a card game played by one person Pyramid video game Pyramid video game Pyramid 2000 , an interactive fiction game Russian pyramid , a variant of the game of pool League system , a hierarchy of leagues in a given sport Pyramid, a three dimensional chess variant Pyramid Head , a monster from the Silent Hill video game series Television and film Pyramid game show Pyramid game show , several versions of a U.S. game show Pyramid Gladiators Pyramid Gladiators The Pyramid Croatian TV series The Pyramid Croatian TV series The Pyramid Game , a UK game show Building the Great Pyramid , a 2002 BBC TV documentary film The Pyramid , a List of The Bionic Woman episodes The Bionic Woman episode Publications and publishing Pyramid magazine Pyramid magazine Pyramids novel Pyramids novel , by Terry Pratchett The Pyramid Golding The Pyramid Golding , a novel The Pyramid Kadare The Pyramid Kadare , a novel The Pyramid short stories The Pyramid short stories , by Henning Mankell Pyramid Books , a publishing company The Red Pyramid novel , a young adult novel by Rick Riordan Music Pyramid Rock Festival , in Victoria, Australia The Pyramids band , an American surf rock group The Pyramids reggae band , a British group Pyramids band , an American experimental group Pyramid album Pyramid album , by The Alan Parsons Project Pyramid song Pyramid song , by Charice Pyramid Cannonball Adderley album Pyramid Cannonball Adderley album Pyramid , an album by Modern Jazz Quartet Pyramid, a song by Wolfmother on the album Wolfmother album Wolfmother PYRAMID, once the name of an indie ... more details
Infobox Polyhedron Image File Hexagonal pyramid.png Polyhedron Type PyramidgeometryPyramid Face List 6 triangle s br 1 hexagon Edge Count 12 Vertex Count 7 Symmetry Group C sub 6v sub Vertex List 6 3 sup 2 sup .6 br 3 sup 6 sup Dual Self dual polyhedron self dual Property List convex set convex In geometry , a hexagonal pyramid is a Pyramidgeometrypyramid with a hexagon al base upon which are erected six triangle triangular faces that meet at a point the vertex . Like any pyramid , it is self dual polyhedron dual . A right hexagonal pyramid with a regular hexagon base has List of spherical symmetry groups Other C sub 6v sub symmetry . See also Hexagonal bipyramid A right regular pyramid is the one which has a regular hexagon at the base, it is called as a right regular pyramid because the line joining the centre of the base to the apex of the pyramid, the line joining the centre of the hexagon base and any of the corners of the hexagon and the line joining that corner of the hexagon and the apex form a right angled triangle. External links Mathworld urlname Hexagonal Pyramid title Hexagonal pyramid http www.georgehart.com virtual polyhedra vp.html Virtual Reality Polyhedra www.georgehart.com The Encyclopedia of Polyhedra http www.georgehart.com virtual polyhedra conway notation.html Conway Notation for Polyhedra Try Y6 Category Pyramids and bipyramids Category Self dual polyhedra Category Prismatoid polyhedra Polyhedron stub ... more details
In geometry , a base is a side of a plane figure or face of solid, particularly one perpendicular to the direction height is measured or on what is considered to the bottom. This usage can be applied to a triangle , parallelogram , trapezoids , Cylinder geometry cylinder , pyramid , parallelopiped or frustum . By extension, the length or area of a base is also called a base. As such, bases are commonly used in formulas for area and volume . Of the three sides of an isosceles triangle , the one which is not one of the two equal sides is called the base. See also Area Volume References cite book title Plane Geometry first1 C.I. last1 Palmer first2 D.P. last2 Taylor publisher Scott, Foresman & Co. year 1918 pages 38, 315, 353 url http books.google.com books?id k9oZAAAAYAAJ geometry stub Category Area Category Geometry Category Triangle geometry Category Volume ca Base geometria es Base geometr a eu Oinarri geometria fr Base g om trie it Base geometria ... more details
square pyramids added to each face. Topology Like all pyramids, the square pyramid is Self dual polyhedron self dual , having the same number of vertices as faces. A square pyramid can be represented by the Wheel graph W sub 5 sub . External links Mathworld2 urlname SquarePyramid title Square pyramid ... poly show 45 square pyramid Square Pyramid Interactive Polyhedron Model http www.georgehart.com ... VRML http www.georgehart.com virtual polyhedra vrml square pyramid J1 .wrl model Category Self ... more details
Infobox Egyptian pyramid Image Image Khafre s Pyramid343.jpg 230px Khafre s Pyramid Name Pyramid of Khafre Owner Khafre Type pyramid True Pyramid Height convert 136.4 m ft 0 ref name sky http skyscraperpage.com cities ?buildingID 1007 SkyscraperPage Pyramid of Chefren ref br Originally convert 143.5 ... 31 07 51 E region EG type landmark display title Image Egypt.Giza.Sphinx.02.jpg thumb The Pyramid of Khafre and the Great Sphinx of Giza The Pyramid of Khafre , also known as the Pyramid of Chefren , ref name sky is the second largest of the Ancient Egypt ian Giza pyramid complex Pyramids of Giza and the tomb of the fourth dynasty of Egypt fourth dynasty pharaoh Khafre Chephren . Size The pyramid ... convert 143.5 m ft 0 disp abbr on . ref name sky The Pyramid is made of Limestone blocks weighing more than 2 tons each . The slope of the pyramid rises at an 53 10 angle, steeper than its neighbor, the Pyramid of Khufu which has an angle of 51 50 40 . The pyramid sits on bedrock 10 m 33 ft higher than Khufu s pyramid which makes it appear to be taller. History The pyramid was likely .... Arab historian Ibn Abd as Salaam recorded that the pyramid was opened in 1372. It was first explored ... by John Perring in 1837. Construction Like the Great Pyramid built by Khafre s father Khufu, a rock ... 10 m 33 ft out of the rock subsoil and the southeast corner is built up. The pyramid is built of horizontal courses. The stones used at the bottom are very large, but as the pyramid rises, the stones ... in the midsection of the pyramid. Casing stones cover the top third of the pyramid, but the pyramidion and part of the Apex geometry apex are missing. The bottom course of casing stones was made out of pink granite but the remainder of the pyramid was cased in Tura Egypt Tura Limestone. Close examination ... to the limited working space towards the top of the pyramid. Inside the Pyramid Two entrances lead to the burial chamber, one that opens 11.54 m 38 ft up the face of the pyramid and one that opens ... more details
Pyramid Lake may refer to Pyramid Lake Alberta , Canada Pyramid Lake California Pyramid Lake El Dorado County, California Pyramid Lake Nevada Pyramid Lake New York Pyramid Lake Washington See also Pyramid Lake Indian Reservation , Nevada Pyramid Lake War disambig de Pyramid Lake fr Pyramid Lake ko no Pyramid Lake ... more details
Food pyramid may refer to Food guide pyramid , a core concept in nutritional guides around the world. MyPyramid , the USDA s 2005 version of the food guide pyramid. Ecological pyramid or trophic pyramid , a representation of a food chain. disambig ... more details
The Red Pyramid may refer to The Red Pyramid novel The Red Pyramid novel , the first book in The Kane Chronicles series by Rick Riordan Red Pyramid the third largest Egyptian pyramid disambig ... more details
Pyramid Peak may refer to Pyramid Peak Alaska , in the United States Pyramid Peak Arizona , in the United States Pyramid Peak California , in the United States Pyramid Peak Colorado , in the United States Pyramid Peak Montana , in Glacier National Park Pyramid Peak Antarctica geodis ... more details
Image Tile 4,4.svg thumb Square tiling four square geometry square faces per vertex Image hexahedron.png thumb cube three square geometry square faces per vertex In geometry , a face of a polyhedron is any of the polygons that make up its boundaries. For example, any of the square geometry square s that bound a cube is a face of the cube. The suffix hedron is derived from the Greek word hedra which means face . Sometimes, in the case of a pyramid , the term face is understood to exclude the base. The two dimensional polygons that bound higher dimensional polytopes are also commonly called faces . Formally, however, a face is any of the lower dimensional boundaries of the polytope, more specifically called an n face . Formal definition In convex geometry , a face of a polytope P is the intersection of any supporting hyperplane of P and P . From this definition it follows that the set of faces of a polytope includes the polytope itself and the empty set. For example, a polyhedron R sup 3 sup is entirely on one hyperplane of R sup 4 b . If R sup 4 sup were spacetime, the hyperplane at t 0 supports and contains the entire polyhedron. Thus, by the formal definition, the polyhedron is a face of itself. All of the following are the n faces of a 4 polytope 4 dimensional polytope 4 face the 4 dimensional 4 polytope itself 3 face any 3 dimensional cell geometry cell 2 face any 2 dimensional polygonal face using the common definition of face 1 face any 1 dimensional edge geometry edge 0 face any 0 dimensional vertex geometry vertex the empty set. Facets If the polytope lies in m dimensions, a face in the m 1 dimension is called a Facet mathematics facet . For example, a cell of a polychoron is a facet, a face of a polyhedron is a facet, an edge of a polygon is a facet, etc. A face in the n 2 dimension is called a Ridge geometry ridge . See also Euler characteristic External links ... geometry Category Convex geometry Category Polyhedra ar ca Cara superf cie cs St na ... more details
The pyramid inch , infrequently called the sacred Jewish inch Fact date July 2007 , is a unit of measure claimed by pyramidology pyramidologists to have been used in ancient times. Supposedly it was one twenty fifth of a cubit sacred cubit , 1.00106 imperial inch es, or 2.5426924 centimetre s. The first suggestion that the builders of the Great Pyramid of Giza used units of measure related to modern measures is attributed to Oxford University Oxford astronomy professor John Greaves 1602 1652 , who journeyed to Egypt in 1638 to make measurements of the pyramid. His findings were published in his Pyramidographia and under his name in an anonymous tract. ref J. Greaves probably not the real author ... than a modern British inch. ref John Taylor, The Great Pyramid, Why Was It Built? and Who Built It? London, 1859 . ref This was origin of the pyramid inch . Taylor regarded the pyramid inch to be 1 ... Newton s value for this cubit was somewhat shorter see Peter Tomkins, Secrets of the Great Pyramid , Allen Lane 1971, p30 31. ref The principal argument was that the total length of the four sides of the pyramid would be 36524 100 times the number of days in a year if measured in pyramid inches. Taylor ... , ref C. Piazzi Smyth, Our inheritance in the Great Pyramid, with photograph, map, and plates London, 1864 . ref also found numerous apparent coincidences between the measurements of the pyramids and the geometry ... adopt the metric system ref E. M. Reisenauer, The battle of the standards Great Pyramid metrology ... from Smyth s Our Inheritance in the Great Pyramid 1877 shows some of his measurements and chronological ... went to Egypt in 1880 to perform new measurements, he found that the pyramid was several feet smaller ... of any such measure as a Pyramid inch, or of a cubit of 25.025 British inches. ref W. M. Flinders ... s polar diameter. The pyramid inch now appears to have no significant scientific support. No direct ... Neal for a metrological explanation of the Pyramid Inch alongside the historical development ... more details
In mathematics affine geometry is the study of geometric properties which remain unchanged by affine transformation s, i.e. non singular linear transformation s and Translation geometry translations . The name affine geometry, like projective geometry and Euclidean geometry , follows naturally from the Erlangen program of Felix Klein . Affine geometry is a form of geometry featuring the unique parallel ... be compared in different directions that is, Euclidean geometry Axioms Euclid s third and fourth ... geometry , but also apply in Minkowski space . Those properties from Euclidean geometry that are preserved ..., affine geometry is a generalization of Euclidean geometry characterized by slant and scale distortions. Projective geometry is more general than affine since it can be derived from projective space ... to Geometry location New York publisher John Wiley & Sons year 1969 isbn 0 471 50458 0 ref In the language of Klein s Erlangen program , the underlying symmetry in affine geometry is the group mathematics ... transformation s of a vector space together with the translation geometry translation s by a vector. Affine geometry can be developed on the basis of linear algebra . One can define an affine ... geometry recognized for being a generalization of Euclidean geometry . ref cite book last Coxeter first H. S. M. pages 191 title Introduction to Geometry location New York publisher John Wiley & Sons year 1969 isbn 0 471 50458 0 ref Axioms for affine geometry An axiomatic treatment of plane affine geometry can be built from the Ordered geometry Axioms of ordered geometry axioms of ordered geometry by the addition of two additional axioms. ref Coxeter, Introduction to Geometry, p. 192 ref Parallel ... forms an equivalence relation on lines. Since the axioms of ordered geometry as presented here include ... of affine geometry over the field of real numbers. Affine transformations ... lines. Affinities only admit two types of isometry half turns and translation geometry translations ... more details
The Unfinished Pyramid may refer to The Unfinished Pyramid presented in the symbol of the Eye of Providence The Egyptian pyramids pyramid of the Pharaoh Neferefre , unfinished due to his premature death The unfinished pyramid of the Pharaoh Khendjer See also Frustum dab ... more details
border 1 bgcolor ffffff cellpadding 5 align right style margin left 10px width 250 bgcolor e7dcc3 colspan 2 Wedge align center colspan 2 Image Geometric wedge.png 240px Square Pyramid bgcolor e7dcc3 Faces 2 triangle s, BR 3 quadrilateral s bgcolor e7dcc3 Edges 9 bgcolor e7dcc3 Vertices 6 bgcolor e7dcc3 Dual polyhedron ? bgcolor e7dcc3 Properties convex In solid geometry , a wedge is a polyhedron defined by two triangle s and three trapezoid faces. A wedge has five faces, nine edges, and six vertices. A wedge is a subclass of the prismatoid s with the base and opposite ridge in two parallel planes. A wedge can also be classified as a digon al Cupola geometry cupola . Wedges can be created from decomposition of other polyhedra. For instance, the dodecahedron can be divided into a central cube with 6 wedges covering the cube faces. The orientations of the wedges are such that the triangle and trapezoid faces can connect and form a regular pentagon . A triangular prism is a special case wedge with the two triangle faces being translationally congruent. Comparisons A wedge is a parallelepiped where a face has collapsed into a line. A quadrilaterally based pyramid is a wedge in which one of the edges between two trapezoid faces has collapsed into a point. For a rectangle based wedge, the volume is math V bh left frac a 3 frac c 6 right math where the base rectangle is a by b , c is the Apex geometry apex edge length parallel to a , and h the height from the base rectangle to the apex edge. File Triangular prism wedge.png thumb Triangular prism BR Parallel triangle wedge References Harris, J. W., & Stocker, H. Wedge . 4.5.2 in Handbook of Mathematics and Computational Science . New York Springer, p. 102, 1998. ISBN 978 0 387 94746 4 External links MathWorld urlname Wedge title Wedge Category Polyhedra Category Prismatoid polyhedra pl Klin matematyka eo Kojno geometrio it Cuneo geometria nl Wig ruimtelijk figuur th geometry stub ... more details
Eye in the Pyramid may refer to The Eye in the Pyramid , a book in The Illuminatus Trilogy by Robert Shea and Robert Anton Wilson Eye of Providence , an ancient symbol disambig ... more details
border 1 bgcolor ffffff cellpadding 5 align right style margin left 10px width 250 bgcolor e7dcc3 colspan 2 Set of bicupolae align center colspan 2 Image cuboctahedron.svg 240px Triangular gyrobicupola br bgcolor e7dcc3 Faces 2n triangles , BR 2n Square geometry square s BR 2 polygon n agon bgcolor e7dcc3 Edges 8n bgcolor e7dcc3 Vertices 4n bgcolor e7dcc3 Symmetry group Ortho D sub nh sub bgcolor e7dcc3 Symmetry group Gyro D sub nd sub bgcolor e7dcc3 Properties convex Image Gyrobifastigium.png thumb The gyrobifastigium J26 can be considered a digonal gyrobicupola. In geometry , a bicupola is a solid formed by connecting two cupola geometry cupolae on their bases. There are two classes of bicupola because each cupola half is bordered by alternating triangles and squares. If similar faces are attached together the result is an orthobicupola if squares are attached to triangles it is a gyrobicupola . Cupolae and bicupolae categorically exist as infinite sets of polyhedra, just like the pyramid geometry pyramid s, bipyramid s, prism geometry prisms , and trapezohedron trapezohedra . Six bicupolae have regular polygon faces triangle triangular , Square geometry square and pentagon al ortho and gyrobicupolae. The triangular gyrobicupola is an Archimedean solid , the cuboctahedron the other five are Johnson solid s. Bicupolae of higher order can be constructed if the flank faces are allowed to stretch into rectangle s and isosceles triangle s. Bicupolae are special in having four faces on every vertex. This means that their dual polyhedra will have all quadrilateral faces. The best known example is the rhombic dodecahedron composed of 12 rhombic faces. The dual of the ortho form, triangular orthobicupola , is also a dodecahedron , similar to rhombic dodecahedron , but it has 6 trapezoid faces which alternate long and short edges around the circumference. Forms Set of orthobicupolae class wikitable Symmetry Picture Description D sub 3h sub Image Triangular orthobicupola.png ... more details
In mathematics , plane geometry may refer to Euclidean plane geometry , the geometry of plane figures, geometry of a plane geometry plane , or sometimes geometry of a projective plane , most commonly the real projective plane but possibly the complex projective plane , Fano plane or others geometry of the Hyperbolic geometry hyperbolic plane or two dimensional spherical geometry . See also plane curve . mathdab bn eo Ebena geometrio ... more details
Encyclopedia
top
