Right Triangle Calculator
Enter two known sides of a right triangle — either both legs or one leg and the hypotenuse — to find the third side.
Formula
a² + b² = c², where c is the hypotenuse
Example
A leg of 6 and a hypotenuse of 10 gives a missing leg of 8.
Frequently Asked Questions
- How do I find angles too?
- For angles as well as sides, use the Triangle Calculator with all three side lengths.
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