
A.
(sqrt{6}) 
B.
4(sqrt{3}) 
C.
(sqrt{3}) 
D.
(frac{12}{sqrt{3}})
Correct Answer: Option B
Explanation
From the diagram, WYZ = 60^{o}, XYW = 180^{o} – 60^{o}
= 120^{o}
LX = 30^{o}
XWY = 180^{o} – 120^{o} + 30^{o}
XWY = 30^{o}
WXY = XYW = 30^{o}
Side XY = YW
YW = 8m, sin 60^{o} = (frac{3}{2})
∴ sin 60^{o} = (frac{h}{YW}), sin 60^{o} = (frac{h}{8})
h = 8 x (frac{3}{2})
= 4(sqrt{3})