Special Parallelograms

Front

What is a rhombus?

Back

A rhombus is a type of parallelogram where all four sides are of equal length.

Front

What is the length of diagonal BD in parallelogram ABCD if it is given as 10?

Back

The length of diagonal BD is 10.

Front

What is the measure of angle 4 in a rhombus if it is given as 90 degrees?

Back

m∠4 = 90 degrees.

Front

Which condition cannot be used to prove a shape is a parallelogram?

Back

One pair of opposite sides congruent.

Front

What is true about the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent.

Front

What defines a rectangle?

Back

A rectangle is a parallelogram with four right angles.

Front

What is the relationship between the opposite angles of a parallelogram?

Back

The opposite angles of a parallelogram are congruent.

Front

What is a square?

Back

A square is a special type of parallelogram that has all sides equal and all angles equal to 90 degrees.

Front

How can you prove that a quadrilateral is a parallelogram?

Back

You can prove it by showing that both pairs of opposite sides are parallel or both pairs of opposite sides are congruent.

Front

What is the sum of the interior angles of a parallelogram?

Back

The sum of the interior angles of a parallelogram is 360 degrees.