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So I have a triangle where I know the sine of 1 angle is the square root of 0.9, the opposite triangleside of this angle is 6 times the square root of 10, I need to find and exact value for another sine in another angle and the opposite side of this angle is 4 times the square root of 5, this answer has to be exact.

 Sep 15, 2020
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Hint: to calculate the third side, use the law of cosines and quadratic equation.

 

To find the angle you're looking for, use the law of cosines.

 

Good luck!laugh

 Sep 16, 2020

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