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How do you find the missing angles when the sides of a right triangle are given?

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Oct 29, 2014

In Triangle #ABC# with the right angle at #C#, let #a#, #b#, and #c# be the opposite, the adjacent, and the hypotenuse of #angle A#. Then, we have

#sin A=a/c Rightarrow "m"angle A=sin^{-1}(a/c)#

#sin B=b/c Rightarrow "m"angle B=sin^{-1}(b/c)#

I hope that this was helpful.

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