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  2. List of centroids - Wikipedia

    en.wikipedia.org/wiki/List_of_centroids

    Cuboid: a, b = the sides of the cuboid's base c = the third side of the cuboid Right-rectangular pyramid: a, b = the sides of the base h = the distance is from base ...

  3. Cuboid - Wikipedia

    en.wikipedia.org/wiki/Cuboid

    Etymologically, "cuboid" means "like a cube", in the sense of a convex solid which can be transformed into a cube (by adjusting the lengths of its edges and the angles between its adjacent faces). A cuboid is a convex polyhedron whose polyhedral graph is the same as that of a cube. [1] [2] General cuboids have many different types.

  4. List of mathematical shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_shapes

    5-cube, Rectified 5-cube, 5-cube, Truncated 5-cube, Cantellated 5-cube, Runcinated 5-cube, Stericated 5-cube; 5-orthoplex, Rectified 5-orthoplex, Truncated 5-orthoplex, Cantellated 5-orthoplex, Runcinated 5-orthoplex; Prismatic uniform 5-polytope For each polytope of dimension n, there is a prism of dimension n+1. [citation needed]

  5. Rectangular cuboid - Wikipedia

    en.wikipedia.org/wiki/Rectangular_cuboid

    A rectangular cuboid with integer edges, as well as integer face diagonals, is called an Euler brick; for example with sides 44, 117, and 240. A perfect cuboid is an Euler brick whose space diagonal is also an integer. It is currently unknown whether a perfect cuboid actually exists. [6] The number of different nets for a simple cube is 11 ...

  6. Solid angle - Wikipedia

    en.wikipedia.org/wiki/Solid_angle

    The solid angle subtended at the corner of a cube (an octant) or spanned by a spherical octant is π /2 sr, one-eight of the solid angle of a sphere. [ 1 ] Solid angles can also be measured in square degrees (1 sr = ( 180/ π ) 2 square degrees), in square arc-minutes and square arc-seconds , or in fractions of the sphere (1 sr = ⁠ 1 / 4 π ...

  7. Truncated cube - Wikipedia

    en.wikipedia.org/wiki/Truncated_cube

    In geometry, the truncated cube, or truncated hexahedron, is an Archimedean solid. It has 14 regular faces (6 octagonal and 8 triangular ), 36 edges, and 24 vertices. If the truncated cube has unit edge length, its dual triakis octahedron has edges of lengths 2 and δ S +1 , where δ S is the silver ratio, √ 2 +1.

  8. Padovan cuboid spiral - Wikipedia

    en.wikipedia.org/wiki/Padovan_cuboid_spiral

    Padovan cuboid spiral. In mathematics the Padovan cuboid spiral is the spiral created by joining the diagonals of faces of successive cuboids added to a unit cube. The cuboids are added sequentially so that the resulting cuboid has dimensions that are successive Padovan numbers. [1] [2] [3] The first cuboid is 1x1x1.

  9. Mathematics of paper folding - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_paper_folding

    Doubling the cube: PB/PA = cube root of 2. The classical problem of doubling the cube can be solved using origami. This construction is due to Peter Messer: [38] A square of paper is first creased into three equal strips as shown in the diagram. Then the bottom edge is positioned so the corner point P is on the top edge and the crease mark on ...