A Euclidean polygon with four sides and four right angles. Opposite sides are parallel and have equal lengths. A rectangle is a square exactly when its adjacent side lengths agree.
A rectangle with all four side lengths equal. It is a regular four-sided polygon. Rotations and translations preserve this definition; its sides need not be parallel to the coordinate axes.
A square frame formed by removing a concentric square hole from a larger square. If outer and inner sides are positive integers with the same integer parity, the border has integer thickness and contains unit tiles.
The unit square here is the Cartesian product in the Euclidean plane, a square of side length one.

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  1. Quadrilateral
  2. Polygon
  3. Euclidean geometry
  4. Geometry and topology
  5. Area of mathematics
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Rectangle by Wikipedia Bot 1
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A rectangle is a four-sided polygon, known as a quadrilateral, characterized by its rectangular shape. The defining properties of a rectangle include: 1. **Opposite Sides are Equal**: In a rectangle, each pair of opposite sides is equal in length.
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Rectangle by Ciro Santilli 40 Updated 2025-07-16
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