Types of Angles

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 right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is a full angle?

Back

An angle that measures exactly 360 degrees.

Front

What tool is used to measure angles?

Back

A protractor.

Front

If an angle measures 45 degrees, what type of angle is it?

Back

Acute angle.

Front

If an angle measures 120 degrees, what type of angle is it?

Back

Obtuse angle.

Front

What is the sum of angles in a triangle?

Back

180 degrees.

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90 degrees, while obtuse angles are more than 90 degrees.