Special Parallelograms and Trapezoids

Front

What is a special parallelogram with four congruent sides?

Back

A rhombus.

Front

What are the properties of the diagonals of a rhombus?

Back

The diagonals of a rhombus are perpendicular to each other.

Front

What is the measure of each angle in a rectangle?

Back

Each angle in a rectangle measures 90°.

Front

What is a trapezoid?

Back

A trapezoid is a quadrilateral with at least one pair of parallel sides.

Front

What is the relationship between the angles in a trapezoid?

Back

The sum of the interior angles in a trapezoid is 360°.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the area of a rhombus?

Back

Area = (d1 × d2) / 2, where d1 and d2 are the lengths of the diagonals.

Front

What is the definition of a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Front

What is the property of opposite angles in a parallelogram?

Back

Opposite angles in a parallelogram are equal.

Front

What is the measure of the angles in a rhombus?

Back

The opposite angles in a rhombus are equal, and adjacent angles are supplementary.