Pythagorean Theorem Calculator
Solve for any missing side of a right triangle using a² + b² = c². Free and instant.
Calculate missing sides of a right triangle using a² + b² = c².
Results
a² + b² = c²
Sides: a = 3, b = 4, c = 5
Angles: A ≈ 53.1301023542°, B ≈ 36.8698976458°, C = 90°
Area: 6
Perimeter: 12
Pythagorean Theorem Calculator
This free Pythagorean theorem calculator finds the missing side of a right triangle when you know any two sides. It also computes angles, area, and perimeter. Enter legs a and b, or the hypotenuse c, and leave one side blank.
- a² + b² = c² for legs and hypotenuse
- Enter any two sides to find the third
- Angles, area, and perimeter
- Copy and reset
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