Angle Addition Postulate

Front

What is the point where two rays meet called?

Back

Vertex

Front

Name the vertex of the angle formed by points E, F, and D.

Back

E

Front

If m∠QST = 135°, what equation would you use to find x?

Back

3x + 1 + 2x - 6 = 135

Front

What are complementary angles?

Back

Two angles that add up to 90°.

Front

If m∠K = (3x + 3)° and m∠L = (10x - 4)°, how do you find the measure of each angle?

Back

Set up the equation: (3x + 3) + (10x - 4) = 90.

Front

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

Back

105°

Front

What is the Angle Addition Postulate?

Back

If point B is in the interior of ∠AOC, then m∠AOB + m∠BOC = m∠AOC.

Front

If m∠1 + m∠2 = 90°, what can you say about angles 1 and 2?

Back

They are complementary angles.

Front

What is the measure of an angle that is supplementary to a 75° angle?

Back

105° (because 180° - 75° = 105°).

Front

If two angles are congruent, what does that mean?

Back

They have the same measure.