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Find X.
Round to the nearest tenth.

Find X. Round to the nearest tenth.-example-1
User Audrea
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1 Answer

8 votes

Answer:

Explanation:


c^2=a^2+b^2-2ab\cos\theta\\ \\ \theta=\cos^(-1)(a^2+b^2-c^2)/(2ab)\\ \\ \theta=\cos^(-1)(55^2+50^2-90^2)/(2(55)50)\\ \\ \theta\approx117.9^o

User Tibbon
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