Parallelogram
Image Parallelogram.svg frame right A parallelogram. In geometry , a parallelogram is a quadrilateral with two sets of parallel sides. The opposite sides of a parallelogram are of equal length, and the opposite ..
Parallelogram law
Image Color parallelogram.svg right thumb A parallelogram. The sides are shown in blue and the diagonals in red. In mathematics , the simplest form of the parallelogram law belongs to elementary geometry ..
Parallelogram of force
Italic text main Vector addition The parallelogram of forces is a method for solving or visualizing the results ... forth. Image Vector parallelogram.PNG thumb 200px Figure 1 Parallelogram construction for adding ..
Sander illusion
Image Sander Illusion.svg thumb right 225px Sander illusion The Sander illusion or Sander s parallelogram ... ref Sander parallelogram n. 2006 . A Dictionary of Psychology. Andrew M. Colman. Oxford University ..
Gnomon (disambiguation)
figure , in geometry, a plane figure formed by removing a similar parallelogram from a corner of a larger parallelogram Gnomon, the difference between a pair of consecutive figurate number s Gnomon ..
Varignon's theorem
with the construction of particular parallelogram Varignon parallelogram from an arbitrary quadrangle . The midpoints of the sides of an arbitrary quadrangle form a parallelogram. If the quadrangle ..
Antiparallelogram
unlike in a parallelogram and are therefore not parallel . The antiparallelogram has been used as a form ..., it has a point of instability in which it can be converted into a parallelogram and vice ..
Parallelogon
opposite sides are parallel. A quadrilateral parallelogon is a parallelogram . Each side of a parallelogon .... Just as the lengths of the sides of a parallelogram follow an a, b, a, b pattern, so the lengths ..
Rhomboid
are Rhomboids In geometry , a rhomboid is a parallelogram in which adjacent sides are of unequal ... means rhomb like was commonly used in the 19th century for a parallelogram which was neither a rectangle ..
Elliptic function
. If a and b are fundamental periods, then any parallelogram with vertices z , z a , z b , z a b is called a fundamental parallelogram . Shifting such a parallelogram by integral multiples of a and b ..
Doubly-periodic function
by linearly independent vectors u and v the prototype square becomes a prototype parallelogram, which ... on the prototype parallelogram. For if it were it would be bounded everywhere, and therefore constant ..
Relative velocity
velocities can be calculated by the parallelogram law of addition of vectors. We can take one velocity in opposite direction and then add it to the other velocity vector by the parallelogram law of vectors ..
Levi-Civita parallelogramoid
a parallelogram to a curved space . It is named for its discoverer, Tullio Levi Civita . A parallelogram ... in a suitable neighborhood, the steps to producing a Levi Civita parallelogram are Start with a geodesic ..
Flag of Brunei Darussalam
is cut across by a parallelogram from a point 6.35 cm below the top left corner to a point of the same ... wide. The parallelogram dividing the rectangle in this manner leaves two similar trapeziums at the top ..
Net force
thumb left 200px Figure 3 Parallelogram construction for adding vectors Note The illustration assumes ... forces must be added up using the parallelogram of force parallelogram rule . For example, see Figure ..
Idler arm
On an automobile or truck with conventional parallelogram steering , the Idler Arm or idler arm assembly is a pivoting support for the steering linkage . The idler arm consists of a rod which pivots on a bracket ..
List of geometric shapes
Reuleaux triangle parallelogram equilateral parallelogram rhombus Lozenge rhomboid Penrose tile ..
Fundamental pair of periods
thumb right Fundamental parallelogram defined by a pair of vectors in the complex plane ... . The parallelogram defined by the vertices 0, math omega 1 math and math omega 2 math is called the fundamental ..
Thébault's theorem
s problem I, II, and III. Thébault s problem I Given any parallelogram , construct on its sides four Square geometry square s external to the parallelogram. The quadrilateral formed by joining the centers ..
Gnomon (figure)
Image gnomon.svg thumb right A gnomon In geometry , a gnomon is a plane figure formed by removing a similarity geometry similar parallelogram from a corner of a larger parallelogram. In the Pythagorea ...
Japanese theorem for concyclic quadrilaterals
the parallelogram tangent to the corners of the constructed rectangle, with sides parallel to the diagonals of the quadrilateral. The construction shows that the parallelogram is a rhombus, which is equivalent ..
Balanced arm lamps
L 1 type of lamp with two parallelogram and two extension spring sets For the physics and theory behind ... An upper arm showing three parallel bars One tension spring controls the forearm, which is a parallelogram ..
Parallelepiped
Type Prism geometry Prism bgcolor e7dcc3 Faces 6 parallelogram s bgcolor e7dcc3 Edges 12 bgcolor ... ????????, a body having parallel planes is a three dimensional figure formed by six parallelogram s. It is to a parallelogram ..
Areal velocity
of a function limit . The vectors AB and AC add up by the parallelogram rule to vector AD , so that point D is the fourth corner of parallelogram ABDC shown in the figure. The area of triangle ABC in yellow ..
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