Quadrilaterals are four-sided polygons, and some of them have diagonals that intersect at right angles (90 degrees). The quadrilaterals that have perpendicular diagonals are:
- Rhombus: A rhombus is a type of parallelogram where all four sides are of equal length. The diagonals of a rhombus bisect each other at right angles.
- Square: A square is a special type of rhombus where all angles are right angles. Like the rhombus, the diagonals of a square bisect each other at 90 degrees.
- Kite: A kite is a quadrilateral with two distinct pairs of adjacent sides that are equal in length. One of the diagonals of a kite bisects the other at a right angle.
These are the main quadrilaterals where the diagonals are perpendicular to each other. Understanding these properties can help in solving geometric problems and proofs.