Special Parallelograms

Front

What is a parallelogram with four congruent sides called?

Back

A rhombus.

Front

What is true about the diagonals of a rhombus?

Back

The diagonals of a rhombus are not congruent; they bisect each other at right angles.

Front

What shape is defined as a quadrilateral with opposite sides that are parallel and equal in length?

Back

A parallelogram.

Front

What are the properties of the diagonals in a rectangle?

Back

The diagonals of a rectangle are congruent and bisect each other.

Front

What is the relationship between the angles of a parallelogram?

Back

Opposite angles are equal, and consecutive angles are supplementary.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

What is a special property of the diagonals of a rectangle?

Back

The diagonals of a rectangle are equal in length.

Front

How do you determine if a quadrilateral is a parallelogram?

Back

If one pair of opposite sides is both parallel and equal in length, then it is a parallelogram.

Front

What is the definition of a rhombus?

Back

A rhombus is a parallelogram with all four sides of equal length.

Front

What is the significance of the diagonals in a rhombus?

Back

The diagonals of a rhombus bisect each other at right angles.