Math

Right Triangle Calculator

Hypotenuse, area, and acute angles from legs a and b.

Hypotenuse c

Area

Angle opposite a (°)

Angle opposite b (°)

This free Right Triangle Calculator covers Hypotenuse, area, and acute angles from legs a and b.

Enter the Right Triangle Calculator fields, then read the output. Math calculators on this site keep the formula visible beside the form.

Right Triangle Calculator — how it works

Hypotenuse, area, and acute angles from legs a and b. Typical inputs are Leg a and Leg b. How it works beside the form states the identity the Right Triangle Calculator applies.

FAQ

How do I use the Right Triangle Calculator?

Open the Right Triangle Calculator, fill Leg a and Leg b, and read the result. Pythagoras gives c; the acute angles are arctan of the opposite-over-adjacent ratios.

What formula does the Right Triangle Calculator use?

The Right Triangle Calculator uses the identity in How it works. In words: Pythagoras gives c; the acute angles are arctan of the opposite-over-adjacent ratios.

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