What is a Quadrilateral?
A quadrilateral is a polygon with four edges (or sides) and four vertices or corners. The word derives from the Latin words "quadri-" (meaning four) and "-latus" (meaning side).
Types of Quadrilaterals
- Square: All sides are equal, and every angle is a right angle.
- Rectangle: Opposite sides are equal, and each angle is a right angle.
- Rhombus: All sides are equal, but angles are not necessarily 90 degrees.
- Parallelogram: Opposite sides are parallel and equal in length.
- Trapezoid (US) / Trapezium (UK): At least one pair of opposite sides is parallel.