In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles. It can also be defined as: an equiangular quadrilateral, since equiangular...

In geometry, a golden rectangle is a rectangle whose side lengths are in the golden ratio, 1 : 1 + 5 2 {\displaystyle 1:{\tfrac {1+{\sqrt {5}}}{2}}} ,...

Rectangle packing is a packing problem where the objective is to determine whether a given set of small rectangles can be placed inside a given large polygon...

A golden rectangle—that is, a rectangle with an aspect ratio of φ {\displaystyle \varphi } —may be cut into a square and a smaller rectangle with the...

angles, π/2 radian angles, or right angles). It can also be defined as a rectangle with two equal-length adjacent sides. It is the only regular polygon whose...

A tiling with rectangles is a tiling which uses rectangles as its parts. The domino tilings are tilings with rectangles of 1 × 2 side ratio. The tilings...

A dynamic rectangle is a right-angled, four-sided figure (a rectangle) with dynamic symmetry which, in this case, means that aspect ratio (width divided...

tetrominoes can fit rectangles with holes: All 5 free tetrominoes fit a 7×3 rectangle with a hole. All 7 one-sided tetrominoes fit a 6×5 rectangle with two holes...

Rabatment of the rectangle is a compositional technique used as an aid for the placement of objects or the division of space within a rectangular frame...

largest empty rectangle problem, maximal empty rectangle problem or maximum empty rectangle problem, is the problem of finding a rectangle of maximal size...