Pythagorean Theorem
Solve a² + b² = c² with a visual showing squares built on each side of the triangle
a² + b² = c² → 3² + 4² = 5²
Side a
3
Side b
4
Hypotenuse c
5
About this calculator
The Pythagorean Theorem Calculator solves a² + b² = c² for any unknown side of a right triangle. Enter any two sides to instantly find the third, with a clear visual showing the squares built on each side. Perfect for geometry, construction, and everyday distance problems.
Common examples
- Legs a = 3, b = 4 → Hypotenuse c = 5
- Legs a = 5, b = 12 → Hypotenuse c = 13
- Hypotenuse c = 10, leg a = 6 → Leg b = 8
- Legs a = 8, b = 15 → Hypotenuse c = 17
- Leg a = 1, leg b = 1 → Hypotenuse c ≈ 1.414 (√2)