Pythagorean Theorem Calculator
The hypotenuse or a missing side of a right-angled triangle, with its area, perimeter and angles.
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How to do it
- 1Add the text
Paste or type the text or amount here.
- 2See the result
The result appears right away as you type.
- 3Copy it
Copy the result and use it anywhere. Your text goes nowhere.
About this tool
Choose to find the hypotenuse (c) from the two legs, or a leg from the hypotenuse and the other leg. The calculator applies a² + b² = c² and also gives the area, the perimeter and the two acute angles.
Frequently asked questions
What is the Pythagorean theorem?
In a right triangle, the square of the longest side (hypotenuse) equals the sum of the squares of the other two sides.
Can I find a leg?
Yes. Choose “Find a side” and enter the hypotenuse and the other leg.
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