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Name: _____________________________________ Date: ________________ Period: _______
1. If two angles add up to 180o they are ___________________________ angles.
2. If two angles add up to 90°, they are ___________________________ angles.
For questions 2 - 8, find the complement of each angle. If the angle does not
have a complement, write NONE.
3. 44° __________
4. 108° __________
5. 90° __________
6. 35° __________
7. 81° __________
8. 16° __________
For questions 8 – 14, find the supplement of each angle. If the angle does not
have a supplement, write NONE.
9. 147° __________
10. 38° __________
11. 90° __________
12. 105° __________
13. 87° __________
14. 170° __________
For 15 – 19, determine whether the statement is ALWAYS true, SOMETIMES
true, or NEVER true.
____________________ 15. Supplementary angles are a linear pair.
____________________ 16. A linear pair is supplementary.
____________________ 17. An obtuse angle has a complement.
____________________ 18. The supplement of an obtuse angle is an obtuse angle.
____________________ 19. The complement of an acute angle is an acute angle.
20. Use the figure to the left to name 4 pairs of
supplementary angles.
4
1
3
2
_______ and _______
_______ and _______
_______ and _______
_______ and _______
Use the figure below to answer questions 21 – 22.
A
D
B
21. Name a pair of complementary angles.
F
______________ and ______________
22. Name 2 pairs of supplementary angles.
E
______________ and ______________
C
______________ and ______________
Color (outline and arc) each angle pair as indicated. Identify the type of angle
pair. Use this information to find the measure of each angle at the end.
S
S
S
X
X
X
T
T
T
R
Y
V
V
V
YTX: and STX: Purple
Angle Pair:
YTV: and XTR: Red
Angle Pair:
S
X
X
X
T
YTS: and STR: Orange
Angle Pair:
S
S
T
T
R
Y
R
Y
R
Y
V
YTX: and RTV: Green
Angle Pair:
R
Y
V
YTV: and VTR: Yellow
Angle Pair:
R
Y
V
STX: and STV: Blue
Angle Pair:
YTX measures 30°
.
Find the measure of STX: ___________ STR: ___________ YTV: ___________ RTV:
___________