4.1 Review Worksheet (continued)
Find each angle measure. 16. m ∠ XYZ
17. m ∠ C
(5 x + 2)°
D
Z
Y
W
(6 x – 5)°
(15 x – 18)°
A B (11 x + 1)°
(8 x + 4)°
C
X
18. m ∠ N and m ∠ P N
19. m ∠ Q and m ∠ S Q
P
( 2 x 2 ) °
( 12 y 2 – 144 ) °
( 3 y 2 ) °
T
R
J
M
( 3 x 2 – 64 ) °
K
L
S
4.1.3 Congruent Triangles Given: Polygon CDEF ≅ polygon KLMN. Identify the congruent corresponding parts. 20. DE ≅ ? 21. KN ≅ ?
22. ∠ F ≅
23. ∠ L ≅
?
?
Given: △ ABD ≅ △ CBD . Find each value. 24. m ∠ C 25. y
B
y – 7
12
A
C
D
(4 x + 10)°
( x + 11)°
215
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