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19 March, 19:26

In triangle ABC, if ∠A = 120°, a = 8, and b = 3, then ∠B

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  1. 19 March, 19:50
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    Sin (120) / 8 = sinB/3

    sin (120) =.866

    .866/8=.108

    .108*3=.325

    sin⁻¹ (.325) = 18.95°
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