Michigan State University - Diagnostic Exam

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6.12

  •   Find side b in the triangle below if ∠ A = 40 ∘, ∠ B = 70∘ , and side a = 10.

    PIC

    a) 12 b) 1.2 c) 14.6 d) 213.7 e) 17.5

Solution:

From the Law of Sines, ∘ ---b---= --10--- ⇒ b = 10-sin-70-- sin70∘ sin 40∘ sin40∘

Diagnostic:

See 6.9: Law of Sines .

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July 15, 2008