Cosine Rule Finding a Side - VividMath.com

How to find a missing length using the Cosine Rule (Law of Cosines).

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[TE-xobi]

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[boost.Threshold]

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[Crazzy-]

If you want you can plug into a calculator if it does bidmas

Squareroot overall then
(17*+20*)-(2(17)(20))cos(48)

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