The opposite internal angles of both a parallelogram and rectangle are equivalent. The main difference is that a rectangle always has angles of 90°, while that of a parallelogram may vary. In other words, the angles of a rectangle are always equal, or equiangular.

A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides.

The main difference is that a rectangle always has angles of 90°, while that of a parallelogram may vary.

All Rectangles are parallelograms but not all parallelograms are rectangles.

Bonus 1 more difference:

In the case of a parallelogram, the diagonals are unequal, and it bisects the shape into two congruent triangles. A rectangle has equal diagonals, which bisects the rectangle into two equal right triangles.

## Answers ( )

## ✏..

Difference::

The opposite internal angles of both a parallelogram and rectangle are equivalent. The main difference is that a rectangle always has angles of 90°, while that of a parallelogram may vary. In other words, the angles of a rectangle are always equal, or equiangular.

A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides.

Bonus 1 more difference: