Classify Angles

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that is less than 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that is exactly 90 degrees.

Front

How many degrees are in a straight angle?

Back

A straight angle is exactly 180 degrees.

Front

What type of angle is greater than 90 degrees?

Back

Obtuse angle.

Front

What type of angle is less than 90 degrees?

Back

Acute angle.

Front

What type of angle is equal to 90 degrees?

Back

Right angle.

Front

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

Back

It is an acute angle.

Front

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

Back

It is an obtuse angle.

Front

If an angle measures 90 degrees, what type of angle is it?

Back

It is a right angle.