Angle Addition Postulate

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∠NML = 138° and m∠EML = 88°, what is m∠NME?

Back

m∠NME = 50°.

Front

Calculate m∠ABC if it is given that m∠ABC = 105°.

Back

m∠ABC = 105°.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180°.

Front

If m∠1 = (5x + 9)° and m∠2 = (3x + 11)°, find m∠1 and m∠2 if they are supplementary.

Back

m∠1 = 109° and m∠2 = 71°.

Front

What is the sum of the measures of complementary angles?

Back

The sum of the measures of complementary angles is 90°.

Front

If m∠RST = (15x - 4)° and m∠RSU = (10x + 3)°, find the measures if m∠UST = 48°.

Back

x = 11, m∠RST = 161°, m∠RSU = 113°.

Front

If m∠K = (3x + 3)° and m∠L = (10x - 4)°, find m∠K and m∠L if they are complementary.

Back

m∠K = 24° and m∠L = 66°.

Front

What is the formula to find the measure of an angle when given its supplementary angle?

Back

If m∠A + m∠B = 180°, then m∠A = 180° - m∠B.

Front

What is the formula to find the measure of an angle when given its complementary angle?

Back

If m∠A + m∠B = 90°, then m∠A = 90° - m∠B.