Properties of Special Quadrilaterals 1

Front

What is a parallelogram?

Back

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

Front

Are all parallelograms quadrilaterals?

Back

Yes, all parallelograms are quadrilaterals.

Front

What is true about opposite angles of a parallelogram?

Back

Opposite angles of a parallelogram are congruent.

Front

What is special about an isosceles trapezoid?

Back

An isosceles trapezoid has two congruent sides.

Front

What is true about consecutive angles of a parallelogram?

Back

Consecutive angles of a parallelogram are supplementary.

Front

What is always true about the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Front

What defines a rectangle as a special type of parallelogram?

Back

A rectangle is a parallelogram with four right angles.

Front

What defines a rhombus as a special type of parallelogram?

Back

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

Front

What is the relationship between the diagonals of a rectangle?

Back

The diagonals of a rectangle are equal in length.

Front

What is the relationship between the diagonals of a rhombus?

Back

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