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Trigonometric Function Fact Sheet:

LAW OF SINES:

For any DABC, where a ,b ,and c are the lengths of the sides of the triangle opposite the

angles with measures A, B, and C respectively:

LAW OF COSINES:

For any DABC, where a ,b ,and c are the lengths of the sides of the triangle opposite the

angles with measures A, B, and C respectively:

a² = b² + c² – 2bc(cos A) & b² = a² + c² – 2ac(cos B) & c² = a² + b² – 2ab(cos C)