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Online Right Triangle Calculator

Two legs → hypotenuse and area; or one leg and hypotenuse → other leg. Uses Pythagorean theorem.

Frequently Asked Questions

What is a right triangle?
A triangle with one 90° angle. The side opposite the right angle is the hypotenuse.
How is area computed?
Area = (1/2) × leg1 × leg2 when both legs are known.

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