# Pythagorean Theorem Calculator

> Find the hypotenuse or missing leg of any right triangle. Shows step-by-step solution with diagram.

**URL:** https://www.calculatoranswers.com/pythagorean-theorem-calculator
**Category:** Education

## Quick Answer

Calculate the length of any missing side of a right triangle. Enter the lengths of any two sides to instantly solve for the third side using the Pythagorean theorem.

## Definition

A Pythagorean theorem calculator is a geometric tool that solves for the length of any side of a right-angled triangle using the formula a² + b² = c², where c is the hypotenuse and a and b are the legs. The theorem is a fundamental principle of Euclidean geometry. It is used extensively in architecture, engineering, navigation, and construction to calculate exact straight-line distances.

## How to Use

1. **Choose the unknown side** — Select whether you are solving for leg a, leg b, or the hypotenuse c.
2. **Enter the known lengths** — Input the lengths of the two sides you know into the respective fields.
3. **Read the result** — View the exact length of the missing side calculated using the a² + b² = c² formula.

## Disclaimer

This calculator provides estimates for educational and planning purposes. Always consult a qualified professional for specific advice on financial, medical, legal, or other regulated decisions.

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