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Pythagorean Theorem Calculator is the best way to find measures of the hypotenuse or one side of the triangle. Get results with steps thanks to our tool online.

## Pythagorean Theorem Calculator: Steps to Resolve Equation

To help you to use our Pythagorean Theorem Calculator, we have drawn a triangle with 3 sides. We allow you to calculate the hypotenuse or one of the other side. To make your calcul easy, we set only one other side: the (b). But don’t worry if your side (b) is longer than the (a). Just enter your values and enjoy results.

## How to Use the Right Triangle Calculator?

- Choose the expected result: Hypotenuse (c) or other side (b)
- Enter your measures: (a) and (b) for hypotenuse or (a) and (c) for the other side
- Click on “calculate” and get result with steps.

## Pythagorean Theorem Calcul with Steps

**Calculation formula for hypotenuse is:**

- c² = a² + b²
- c = √(a² + b²)
- If: a = 45 et b = 4
- Then: c² = 45² + 4²
- So: c = √(45² + 4²)
- c = √(2025 + 16)
- c = √2041
- c = 45.18

Try also our Sig Fig Calculator.