Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem.
Pythagorean Theorem Calculator
Leave blank to calculate
Leave blank to calculate
Leave blank to calculate
Results
How to Use Pythagorean Theorem Calculator
- 1 Enter any 2 of the 3 sides of a right triangle
- 2 Leave the unknown side blank
- 3 Click Calculate to find the missing side and angles
Formula & Methodology
Where c is the hypotenuse (longest side, opposite the right angle) and a, b are the other two sides.
To find c: c = √(a² + b²)
To find a: a = √(c² - b²)
To find b: b = √(c² - a²)
About Pythagorean Theorem Calculator
The Pythagorean theorem is one of the most fundamental principles in geometry. It states that in a right-angled triangle, the square of the hypotenuse equals the sum of squares of the other two sides: a² + b² = c².
This calculator lets you find any missing side by entering just two known values. It also calculates the interior angles using trigonometry.
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