Angle Addition Postulate Practice

Front

What is the Angle Addition Postulate?

Back

The Angle Addition Postulate states that if point B is in the interior of angle AOC, then m∠AOB + m∠BOC = m∠AOC.

Front

If m∠AOB = 60° and m∠BOC = 80°, what is m∠AOC?

Back

m∠AOC = 60° + 80° = 140°.

Front

What type of angle is an angle that measures less than 90°?

Back

An acute angle.

Front

What type of angle is an angle that measures exactly 90°?

Back

A right angle.

Front

What type of angle is an angle that measures more than 90° but less than 180°?

Back

An obtuse angle.

Front

What type of angle is an angle that measures exactly 180°?

Back

A straight angle.

Front

If angle PTQ is acute, what can you say about its measure?

Back

It measures less than 90°.

Front

If m∠DEF = 180°, what type of angle is it?

Back

It is a straight angle.

Front

If m∠A = 49°, what is the measure of its complement?

Back

The complement of ∠A is 90° - 49° = 41°.

Front

If two angles are supplementary, what is the sum of their measures?

Back

The sum of their measures is 180°.