Law of Cosines Formulas

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5 Terms

1

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Law of Cosines

c²=a²+b²-2abcosC

2

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Law of Sines

sinA∕a = sinB∕b = sinC∕c

3

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SAS Area

K=½absinC

4

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SSS Area

K=√s(s-a)(s-b)(s-c) where s=a+b+c÷2

5

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ASA Area

K= a²sinBsinC∕2sinA