All references are to the figure below. The distance between A and D is a, and the distance between D and C is x. 
Assuming that A = 15°, ?DBC = 27°, and a = 9, find h and x.
A. h ? 3, x ? 1
B. h ? 2.8, x ? 1.4
C. h ? 5, x ? 10
D. h ? 5.1, x ? 10.
Answer: A
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