Classifying 2d Figures

Front

What is a trapezoid?

Back

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

Front

Are all trapezoids parallelograms?

Back

No, not all trapezoids are parallelograms.

Front

What is a parallelogram?

Back

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

Front

Are all rectangles parallelograms?

Back

Yes, all rectangles are parallelograms.

Front

What is a rectangle?

Back

A rectangle is a parallelogram with four right angles.

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Front

What are the types of triangles based on angles?

Back

Acute, right, and obtuse.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.