Math
Right Triangle Calculator
Hypotenuse, area, and acute angles from legs a and b.
Free to use — no sign-up or login.
Hypotenuse c
Area
Angle opposite a (°)
Angle opposite b (°)
Amortization schedule
| # | Date | Payment | Principal | Extra | Interest | Balance |
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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, with no account required.
Using the Right Triangle Calculator
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.