Types of Angles

Front

What is a straight angle?

Back

A straight angle measures exactly 180 degrees.

Front

Define an obtuse angle.

Back

An obtuse angle is greater than 90 degrees and less than 180 degrees.

Front

What is the measurement of a right angle?

Back

A right angle measures exactly 90 degrees.

Front

Define an acute angle.

Back

An acute angle is less than 90 degrees.

Front

What angle measures exactly 90 degrees?

Back

A right angle.

Front

What is the range of measurements for an obtuse angle?

Back

Greater than 90 degrees and less than 180 degrees.

Front

What is the range of measurements for an acute angle?

Back

Less than 90 degrees.

Front

What do you call an angle that measures exactly 180 degrees?

Back

A straight angle.

Front

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

Back

It is an obtuse angle.

Front

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

Back

It is an acute angle.