6 lines
418 B
Markdown
6 lines
418 B
Markdown
The Law of Cosines is useful when solving for SAS or SSS triangles.
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$$ a^2 = b^2 + c^2 -2bc\cos(\alpha) $$
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$$ b^2 = a^2 + c^2 -2ac\cos(\beta) $$
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$$ c^2 = a^2 + b^2 -2ab\cos(\gamma) $$
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- When using the Law of Cosines to solve for SSS triangles, start solving for the largest angle.
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- When correctly solved, the smallest angle will be opposite the smallest side, and the largest angle will be opposite the largest side. |