The Right Triangle
Side Calculator

Figure the length of a, b, or c.

Sides a and b are the horizontal and vertical legs of a right triangle. Side c is the hypotenuse. Fill in the two of the three fields, then click



to have us figure the missing length along with a complete description of how it was derived.

Or, for "Type A" personalities, just click



to get just the length of the sides. Answers are shown in a new window.

Value of a:
Value of b:
Value of c: