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Use the law of cosines to solve for x, use proofs. Help pleaseee

Use the law of cosines to solve for x, use proofs. Help pleaseee-example-1

1 Answer

3 votes

Answer:

36.524 units

Explanation:


c=√(a^2+b^2-2ab\cos\gamma)\\c=√(20^2+25^2-2(20)(25)\cos108^\circ)\\c\approx36.524

I'm sure you can do the rest on your own :)

User Solimar
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