1.
Angles
A
and
B
are supplementary. If
= 45°, find
.
A.
75°
B.
45°
C.
90°
D.
135°
Hint
2.
Angles
A
and
B
are complementary. If
m
A
= 25°, what is
m
B
?
A.
90°
B.
75°
C.
65°
D.
25°
Hint
3.
Which angle has a measure of 10°?
A.
B.
C.
D.
Hint
4.
Which angle has a measure of 170°?
A.
B.
C.
D.
Hint
5.
Classify the pair of angles below.
A.
neither
B.
complementary
C.
supplementary
D.
both
Hint
6.
If
is 72°, find the measure of its complement and its supplement.
A.
8, 118
B.
8, 162
C.
18, 118
D.
18, 108
Hint
7.
Solve (4
x
- 12) + 2
x
= 180.
A.
28
B.
24
C.
32
D.
26
Hint
8.
Solve 8n + 4n + 6n = 90.
A.
5
B.
6
C.
10
D.
9
Hint
9.
The angle below measures 140°. Classify the angle.
A.
obtuse
B.
right
C.
acute
D.
straight
Hint
10.
The angle below measures 40°. Classify the angle.
A.
straight
B.
right
C.
obtuse
D.
acute
Hint