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14 October, 18:44

State whether the given measurements determine zero, one, or two triangles.

B = 81°, b = 26, c = 28

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  1. 14 October, 21:44
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    Let's apply the law of sine to calculate angle C

    sin (81) / 26 = sin (C) / 28

    0.1646 = sin (C) / 28 and sin (C) = 1.063. Sine sin (α) cannot be > than 1, so this triangle is invalid
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