Learn to find the missing angles for a triangle using inverse trig functions

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You can use the inverse of trig ratios in order to find missing angles in a right triangle.
The trig functions are sine, cosine, and tangent.
Sine is opposite over hypotenuse, cosine is adjacent over hypotenuse, and tangent is opposite over adjacent. When you find missing angles you use the inverse of the trigonometric ratios.
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