Quadrilateral (four-sided plane figure) with opposite sides equal and parallel and with each interior angle a right angle (90°). Its area A is the product of the length l and height h; that is, A = l × h. A rectangle with all four sides equal is a square.
A rectangle is a special case of a parallelogram. The diagonals of a rectangle are equal and bisect each other.
Rectangles: algebraic expressions
A quadrilateral in which all four angles are right angles, opposite sides are parallel and equal in length, the diagonals are equal in...
/rektanggl/ noun a polygon with four right angles and four sides, esp one with adjacent sides of different lengths rectangular ...
Four-sided geometric figure (quadrilateral), the interior angles of which are right angles and each pair of opposite sides is of equal length...