32o
40o
60o
69o
Correct answer is D
sin 60o = x + 0.5 0o(given)
0.8660 = x + 0.5
0.8660 - 0.5 = x
x = 0.3660
cosθ = x(given)
cosθ = 0.3660
Hence, θ = cos-1(0.3660)
= 68.53o
= 69o (nearest degree)
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