Answer:
4
Explanation:
cos^-1(15/20)=41.40962212
41.40962212/2=20.70481106
tan(20.70481106)x15=5.669467097
5.669467097-2=3.669467097
3.669467097 round up
Work Shown:
Use the angle bisector theorem
15/(x+2) = 20/(14-(x+2))
15/(x+2) = 20/(-x+12)
15(-x+12) = 20(x+2) .... cross multiply
-15x+180 = 20x+40
180-40 = 20x+15x
140 = 35x
35x = 140
x = 140/35
x = 4 .... answer is choice A
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