Quadrilateral Vocabulary

Front

What is the place, or corner, where two sides meet?

Back

Vertices

Front

What do you call a parallelogram with 4 equal sides and no right angles?

Back

Rhombus

Front

What is an angle that measures 90 degrees?

Back

Right angle

Front

What are two lines that will never intersect?

Back

Parallel lines

Front

What is a quadrilateral with TWO PAIRS of parallel sides?

Back

Parallelogram

Front

What do you call a four-sided figure?

Back

Quadrilateral

Front

What is a trapezoid?

Back

A quadrilateral with at least one pair of parallel sides.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a square?

Back

A parallelogram with four equal sides and four right angles.