Geometry

Front

Which of the following is not a polygon?

Back

semicircle

Front

Angles that have a measure less than 90 degrees are called _____ ______.

Back

acute angles

Front

What is the name of this polygon?

Back

an octagon

Front

Which shape doesn't belong with the others?

Back

trapezoid

Front

Which quadrilateral has only one pair of parallel sides?

Back

a trapezoid

Front

What is a polygon?

Back

A closed figure with three or more straight sides.

Front

What is a quadrilateral?

Back

A polygon with four sides.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

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