Protractor Practice

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What is a right angle?

Back

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

Front

What is an acute angle?

Back

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

Front

What is an obtuse angle?

Back

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

Front

How do you measure an angle using a protractor?

Back

To measure an angle, place the midpoint of the protractor at the vertex of the angle and align one side with the baseline. Read the measurement where the other side crosses the protractor.

Front

What is the measurement of an angle that is 165 degrees?

Back

The angle is classified as an obtuse angle.

Front

What is the measurement of an angle that is 87 degrees?

Back

The angle is classified as an acute angle.

Front

What type of angle is 175 degrees?

Back

The angle is classified as an obtuse angle.

Front

What type of angle is 92 degrees?

Back

The angle is classified as an obtuse angle.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.