In the figure above,if AC=12, DC=18 and DB =15, what is the length of AF?
(A)8 (B)9 (C) 10 (D)12 (E)18
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Answer:
C 10
Step-by-step explanation:
30°, 60°, 90°
x ; x root of 3, 2x
AC = 12 ( 2x)
CF = 6 ( x)
AF = 6 root of 3
10.39230485
10
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