Right Triangle Calculator
This tool solves a right triangle from any two pieces that are enough to fix it. Enter the two legs, or one leg with the hypotenuse, or one leg with the acute angle opposite it, and it returns the missing side, both acute angles in degrees, the area and the perimeter. Sides come from the Pythagorean theorem and the angles from the inverse tangent, so the numbers are exact to the precision shown. Angles are given in degrees and sides carry whatever unit you entered, since the ratios do not care which one that is.