Inverse Cosine Calculator--Online calc works in degrees or radians, plus draws triangle
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Inverse Cosine Calculator

You can enter input as either a decimal or as the adjacent over the hypotenuse .

Decimal adjacent /hypotenuse
inverse cos( )
Degrees
Radians
Round Angle to
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There are 2 different ways that you can enter input into our arc sine calculator

Method 1:
Enter a decimal between -1 and 1 inclusive		 Method 2:
Entering the ratio of the adjacent side divided by the hypotenuse. (review inverse cosine here )
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