Angles Basics

Front

What type of angle is less than 90 degrees?

Back

Acute angle

Front

What do you call angles that measure exactly 90 degrees?

Back

Right angles

Front

What type of angle measures more than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

What are angles that add up to 90 degrees called?

Back

Complementary angles

Front

What are angles that add up to 180 degrees called?

Back

Supplementary angles

Front

What is the definition of an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is the definition of an obtuse angle?

Back

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

Front

What is the definition of a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is the definition of complementary angles?

Back

Two angles whose measures add up to 90 degrees.

Front

What is the definition of supplementary angles?

Back

Two angles whose measures add up to 180 degrees.