How to do this? Trig laws

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m∠A=15.52, c=18ft, b=16ft, then a=? ft

Guest Jun 22, 2014

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Best Answer

+893

+5

Cosine rule,

a^2 = b^2 + c^2 - 2bc*cos(A).

Bertie Jun 22, 2014

2⁺⁰ Answers

+893

+5

Best Answer

Cosine rule,

a^2 = b^2 + c^2 - 2bc*cos(A).

Bertie Jun 22, 2014

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thank you.

Guest Jun 22, 2014

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