12. In Exereises 3-6, use the figure. (See Example 1.)
Mt
56
124
41
B
(15x - 2)
AN
H
49
(7x + 4)
G
А
D
3. Name a pair of adjacent complementary angles.
4. Name a pair of adjacent supplementary angles.
5. Name a pair of nonadjacent complementary angles.
6. Name a pair of nonadjacent supplementary angles.
13. ZUVW and ZXYZ are complementary angles,
MZUVW = (x - 10), and mZXYZ = (4x - 10)
14. ZEFG and ZLMN are supplementary angles,
ZEFG = (3x + 17), and mZLMN
In Exercises 15-18, use the figure. (See Example w.)
15. Identify the linear pair(s) that
include 21
In Exercises 7-10, find the angle measure.
(See Example 2.)
7. 21 is a complement of 22, and m21 = 23º.
Find m2
16. Identify the linear pair(s) that
include 27.
17. Are Z6 and 28 vertical angles?
Explain your reasoning.
8. 23 is a complement of 24, and m23 - 46°.
Find m24.
9. 25 is a supplement of 26, and m25 = 78°.
Find m26.
18. Are 22 and 25 vertical angles?
Explain your reasoning.
10. 27 is a supplement of 28, and m27
Find m28
109
In Exercises 19-22, find the measure of each angle.
(See Example 5.)