Triangle Formulas Flashcards by Mari Aoki

Q

Law of Cosines

A

a^2=b^2+c^2-2bccosA

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Q

Triangle Area with SAS

A

A=.5absin(theta)

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Q

Triangle Area for SSS

A

Heron’s Formula
(Square root of) s(s-a)(s-b)(s-c)
s=.5(a+b+c)

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Q

Law of Sines

A

(sinA/a)=(sinB/b)=(sinC/c)

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