Angles

Front

What type of angle is 180 degrees?

Back

Straight angle

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

What type of angle is exactly 90 degrees?

Back

Right angle

Front

What type of angle is less than 90 degrees?

Back

Acute angle

Front

What is a polygon?

Back

A plane figure with at least three straight sides and angles.

Front

What do we call an angle that measures exactly 0 degrees?

Back

Zero angle

Front

What is the sum of the angles in a triangle?

Back

180 degrees

Front

What is the term for angles that add up to 90 degrees?

Back

Complementary angles

Front

What is the term for angles that add up to 180 degrees?

Back

Supplementary angles

Front

What do we call angles that are opposite each other when two lines cross?

Back

Vertical angles