A rectangle is a special parallelogram in which all four angles are equal to 90°. A square is a special parallelogram that is both equilateral and equiangular.
What are the special types of parallelograms?
Depending on the properties, there are three special types of parallelogram:
- Rectangle.
- Rhombus.
- Square.
What parallelogram is equiangular but not equilateral?
A quadrilateral can be equiangular but not equilateral (a rectangle) or equilateral but not equiangular (a rhombus). A square, however, is both. All sides of a square are the same length (equilateral) and all its angles have the same measure (equiangular).
