Pythagorean Theorem Calculator

Calculate missing sides of right triangles using the Pythagorean theorem with MaiCalcs. Perfect for geometry, construction, and engineering.

Triangle Sides

Pythagorean Theorem:

• a² + b² = c²

• c = √(a² + b²)

• a = √(c² - b²)

• b = √(c² - a²)

Examples:

• a=3, b=4 → c=5

• a=5, b=12 → c=13

• a=8, b=15 → c=17

Triangle Properties

Enter two sides to calculate the missing side

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