Pythagorean Theorem Calculator
Formula
a² + b² = c²
About This Calculator
This pythagorean theorem calculator helps you move from raw inputs to a decision-ready output in seconds.
Solve right-triangle side lengths using the Pythagorean theorem for geometry problems and distance calculations.
If your workflow expands, pair this calculator with Triangle Area Calculator and Circle Sector Area Calculator to cross-check assumptions and build a stronger analysis chain.
Formula
For right triangle: a^2 + b^2 = c^2
Example Calculation
The worked example below demonstrates how the input fields translate into the final output. Use it as a quick validation pass before entering your own numbers.
- sideA: 6
- sideB: 8
Explanation of Results
Result Interpretation
Squaring and summing legs gives 100, so the hypotenuse is the square root of 100.
FAQ
Does this work for non-right triangles?
No. The theorem applies only when the included angle is 90 degrees.
Can I solve for a missing leg?
Yes. Rearrange to a = sqrt(c^2 - b^2) or b = sqrt(c^2 - a^2) when hypotenuse is known.
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See Also
Other calculators in Geometry