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12 August, 21:27

Solve triangle ABC if A=36 degrees, B=67 degrees, and a=8.

b = 14.89, C = 77°, c = 17.11

b = 12.53, C = 77°, c = 13.3

b = 12.53, C = 77°, c = 4.83

b = 14.89, C = 77°, c = 16.8

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Answers (1)
  1. 13 August, 00:34
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    C = 180 - (A + B) = 180 - (36 + 67) = 77

    a / sin 36 = c / sin C

    => 8 / sin 36 = c / sin 77

    => c = 8 * (sin 77 / sin 36)

    = 8 * (0.974 / 0.588) = 13, so the answer is the second choice
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