Quadrilaterals: Always, Sometimes, Never

Front

What is a quadrilateral?

Back

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

Front

Are all squares rectangles?

Back

Always. A square is a special type of rectangle with all sides equal.

Front

Are all rectangles squares?

Back

Sometimes. A rectangle can be a square if all its sides are equal.

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all sides equal, but angles are not necessarily 90 degrees.

Front

Are all rhombuses parallelograms?

Back

Always. A rhombus is a type of parallelogram.

Front

Are all parallelograms rectangles?

Back

Sometimes. A parallelogram can be a rectangle if its angles are 90 degrees.

Front

What is a trapezoid?

Back

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

Front

Are all quadrilaterals polygons?

Back

Always. Quadrilaterals are a type of polygon.

Front

Are all parallelograms trapezoids?

Back

Always. All parallelograms have at least one pair of parallel sides.

Front

Can a square be a rhombus?

Back

Always. A square is a special type of rhombus.