A parallelogram whose all angles are right.

A parallelogram whose all 4 sides are congruent.

Opposite angles of a rhombus are congruent.

All squares are rectangle.

Consecutive angles are supplementary.

The diagonals bisect each other and perpendicular.

The diagonals separates the parallelogram into 2 congruent triangles.

Opposite angles are congruent and supplementary.

The diagonals bisects a pair of opposite angles.

The diagonals of a rhombus bisect each other and perpendicular.

All squares are rectangle.

The sum of all angles of a parallelogram is 360 degrees.

All sides of a rhombus are congruent.

All rectangles are square.