1pt

2.

**Part B.**

m∠4 =

1 pt

7.

If m∠1 = 80°, which angles are supplementary to it?

A

∠7 and ∠3

B

∠8 and ∠2

C

∠5 and ∠6

D

∠2 and ∠7

1 pt

11.

What is the sum of two complementary angles?

A

180°

B

45°

C

90°

D

360°

1 pt

15.

Two adjacent angles are supplementary. One angle measures 45°. What type of angle is the other angle?

A

acute

B

right

C

obtuse

D

straight