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∠QRG = 42° and m∠GRS = 125°, what is m∠QRS?

Back

m∠QRS = 167°.

Front

If m∠TCD = 120° and m∠BCT = 24°, what is m∠BCD?

Back

m∠BCD = 144°.

Front

If m∠CDK = 20° and m∠KDE = 160°, what is m∠CDE?

Back

m∠CDE = 180°.

Front

If m∠AST = 130° and m∠RST = 170°, what is m∠RSA?

Back

m∠RSA = 40°.

Front

If m∠TSR = 148° and m∠TSJ = 40°, what is m∠JSR?

Back

m∠JSR = 108°.

Front

What is the formula to find the measure of an angle when two angles are given?

Back

m∠A + m∠B = m∠C, where C is the angle formed by A and B.

Front

What does it mean for angles to be adjacent?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

Front

What is a linear pair of angles?

Back

A linear pair of angles is a pair of adjacent angles formed when two lines intersect, and their non-common sides form a straight line.

Front

How do you find the measure of an unknown angle in a triangle?

Back

The sum of the angles in a triangle is always 180°. Use this to find the unknown angle.