Find the solutions for a triangle with a=16, c=12, b=63, b=63°

The answer is m∠A = 71.6° , m∠C = 45.4° , b = 15.0 ⇒ answer (b)

Step-by-step explanation:

∵ a = 16 , c = 12 , m∠B = 63°

By using cosine rule:

∵

∴

By using sin rule:

∵

∴

∴ m∠A=71.6°

∴ m∠C = 180 - (71.6 + 63) = 45.4°

∴ A = 71.6° , C = 45.4° , b = 15.0

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explanation:

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