Question

How do you find the perimeter of a triangle if you only have the interior angles? Thank you in advance. I need help, I'm failing this class and need to ace this test. ​

Answer 1

Explanation:

If you know two angles, then you can work out the third since all the angles sum to 180 degrees. If the sides are a, b and the hypotenuse is c (opposite angle A), and the angles are A, B and C, then Sin A = a/c, so a = cSin A. Also Cos A = b/c, so b = cCos A.

hope that helps...

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