Question

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

Answer 1

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 :)