Angle Pairs

If two angles are ____________, then the sum of their degree measures is 180.

• complementary

• supplementary

• congruent

• adjacent

If ∠A and ∠B are complementary angles, then the sum of their measures is ______.

• 45°

• 90°

• 180°

• 360°

Angles supplementary to the same angle or congruent angles are ____________ congruent

• always

• sometimes

• never

• none of these

Which of the following is not an angle pair?

• adjacent angles

• linear pair

• right angles

• supplementary angles

These are two coplanar angles that have a common side between them but have no interior points in common.

• adjacent angles

• linear pair

• right angles

• supplementary angles

Which of the following degree measures can be the complement of itself?

• 20°

• 45°

• 90°

• 180°

If two angles are complementary, then both are ___________.

• acute

• right

• obtuse

• reflex

∠A and ∠B are congruent angles. If m∠A = 3x + 2 and m∠B = 4x – 15, what is the value of x?

• 13

• 15

• 17

• 19

What is the measure of an angle if the measure of its supplement is 39°?

• 51°

• 90°

• 141°

• 180°

Which of the following pairs of degree measures are supplementary?

• 43° and 46°

• 27° and 63°

• 59° and 121°

• 86° and 95°