Quadrilaterals Review

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides, four vertices, and four angles.

Front

What are the properties of a parallelogram?

Back

A parallelogram has opposite sides that are equal and parallel, opposite angles that are equal, and its diagonals bisect each other.

Front

What defines a rhombus?

Back

A rhombus is a type of parallelogram where all four sides are of equal length and the diagonals bisect the opposite angles.

Front

What is the relationship between the angles in a quadrilateral?

Back

The sum of the interior angles of a quadrilateral is always 360°.

Front

What does it mean for lines to be perpendicular?

Back

Perpendicular lines are two lines that intersect at a right angle (90°).

Front

How do the diagonals of a rhombus behave?

Back

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

Front

What is the difference between a rectangle and a rhombus?

Back

A rectangle has opposite sides that are equal and all angles are right angles, while a rhombus has all sides equal but angles are not necessarily right.

Front

If m∠B is 54°, what is the measure of m∠CDB in a parallelogram?

Back

m∠CDB = 27° (since opposite angles are equal and adjacent angles are supplementary).

Front

What is a trapezoid?

Back

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

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.