Download - LAW OF SINE
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LAW OF SINESin A = Sin B = Sin C
a b c
A, B and C are angles.
a, b and c are the sides opposite their angles.
Use when:
you have 2 angles and a side (AAS or ASA)
you have 2 sides and an opposite angle (SSA)
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LAW OF COSINE
a² = b²+ c² - 2bcCos Ab² = a² + c² - 2acCos Bc² = a² +b² - 2abCosC Use when:you have the measures of two sides and the included angle (SAS)you have 3 sides (SSS)
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Find angles from largest to smallest. To Find Angle Measureuse 2nd Trig function (Sin/Cos/Tan), 2nd answer (or enter)