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So I'm writing a program and I need to write a method that will give me the angle of a specific angle of a triangle when I know only the adjacent length and opposite length. I know that $\tan(A) = \frac{\text{opposite side}}{\text{adjacent side}}$ but how would I solve for $A$ in that equation?

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    Have you heard of inverse trigonometric functions. See here... en.wikipedia.org/wiki/Inverse_trigonometric_functions2012-01-13
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    Never have been taught that in school, thank you very much!2012-01-13

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