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Sine, Cosine and Tangent

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Calculate Acute Angles

How Do You Use Arcsin, Arccos or Arctan to Calculate Acute Angles in a Right Triangle?

You use arcsine, arccosine or arctangent to calculate the size of acute angles, based on two side lengths in a right triangle. This video shows examples of how.

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How Do You Use Arcsin, Arccos or Arctan to Calculate Acute Angles in a Right Triangle?