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a²+b²
Geometry

Pythagorean Theorem Calculator

Find the missing side of a right triangle.

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Use two known sides to solve for the third. You will see the result first and the step-by-step solution below.
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Step by Step Calculation

a²+b²
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Calculate first and the full working will appear below automatically.

How to use Pythagorean Theorem Calculator

Enter the values you know, tap Calculate to see the result first, then review the optional step-by-step solution below.

What this calculator is for

Use two known sides to solve for the third.

Tips

  • Use clean numbers and symbols so the solver reads them correctly.
  • For lists, separate numbers with commas, spaces, or new lines.
  • For matrices, put each row on a new line.

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