isosceles tetrahedron

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• Tetrahedron — For the academic journal, see Tetrahedron (journal). Regular Tetrahedron (Click here for rotating model) Type Platonic solid Elements F = 4, E = 6 V = 4 (χ = 2) Faces by s …   Wikipedia

• Convex uniform honeycomb — The alternated cubic honeycomb is one of 28 space filling uniform tessellations in Euclidean 3 space, composed of alternating yellow tetrahedra and red octahedra. In geometry, a convex uniform honeycomb is a uniform tessellation which fills three …   Wikipedia

• Pythagorean theorem — See also: Pythagorean trigonometric identity The Pythagorean theorem: The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c) …   Wikipedia

• Dodecahedron — Regular Dodecahedron (Click here for rotating model) Type Platonic solid Elements F = 12, E = 30 V = 20 (χ = 2) Faces by sides 12{5} …   Wikipedia

• Octahedron — For the album by The Mars Volta, see Octahedron (album). Regular Octahedron (Click here for rotating model) Type Platonic solid Elements F = 8, E = 12 V = 6 (χ = 2) Faces by sides …   Wikipedia

• Disphenoid tetrahedral honeycomb — Type convex uniform honeycomb dual Cell type disphenoid tetrahedron …   Wikipedia

• Antiprism — An n sided antiprism is a polyhedron composed of two parallel copies of some particular n sided polygon, connected by an alternating band of triangles. Antiprisms are a subclass of the prismatoids.Antiprisms are similar to prisms except the bases …   Wikipedia

• List of polygons, polyhedra and polytopes — This is a list of polygons, polyhedra and polytopes, by Wikipedia page. See also list of regular polytopes, list of geometry topics.*10 sided dice *24 cell *600 cell *120 cell *Antiprism *Archimedean solid *Bipyramid *Catalan solid *Chiliagon… …   Wikipedia

• Golden ratio — For the Ace of Base album, see The Golden Ratio (album). Not to be confused with Golden number. The golden section is a line segment divided according to the golden ratio: The total length a + b is to the length of the longer segment a as the… …   Wikipedia

• Packing problem — Part of a series on Puzzles …   Wikipedia

• Rectangle — Family Orthotope Type Quadrilateral Edges and vertices 4 Schläfli symbol {}x{} …   Wikipedia