Measuring Angles with A Protractor

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

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

How do you measure an angle with a protractor?

Back

To measure an angle with a protractor, align the protractor's baseline with one side of the angle, then read the measurement where the other side crosses the protractor.

Front

What is the measurement of a straight angle?

Back

The measurement of a straight angle is 180 degrees.

Front

What type of angle is 132º?

Back

132º is an obtuse angle.

Front

What type of angle is 90º?

Back

90º is a right angle.

Front

What type of angle is 40º?

Back

40º is an acute angle.

Front

What is the measurement of angle BAL if it is 110 degrees?

Back

Angle BAL measures 110 degrees.