Classifying Angles

Front

What is an angle that is more than 90 degrees called?

Back

Obtuse angle

Front

What type of angle has a measurement of 155 degrees?

Back

Obtuse angle

Front

What is the name of the angle formed by lines DE and EF?

Back

∠FED

Front

A straight angle is ...

Back

An angle that is exactly equal to 180 degrees.

Front

What is an angle that is exactly 90 degrees called?

Back

Right angle

Front

What do you call an angle that is less than 90 degrees?

Back

Acute angle

Front

What is the sum of angles in a triangle?

Back

180 degrees

Front

What type of angle is greater than 180 degrees but less than 360 degrees?

Back

Reflex angle

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