Find x in the diagram below.
...
Find x in the diagram below.
A.
3√3
B.
3(√3−1)√3+1
C.
(√3−1)√3+1
D.
3−1√3+1
Correct answer is B
x+3sin60o = xsin306o
3sin 30o = x sin 60o - x sin 30o
= x(sin 60o - sin 30o)
but sin 30o = 12
sin 60o = 32 = 3(√3−1)√3+1
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