Definition of a rectangle
A rectangle is a quadrilateral in which all angles are right angles.
Properties of a rectangle
- A rectangle is a parallelogram, so its opposite sides are equal.
- The diagonals of a rectangle are equal and bisect each other.
Tests for a rectangle
- A parallelogram with one right angle is a rectangle.
- A quadrilateral whose diagonals are equal and bisect each other is a rectangle.