Pythagorean Theorem

Free online pythagorean theorem. Solve a² + b² = c² with all variations. Accurate and easy to use.

Side a

Side b

Hypotenuse c

Solution

3² + 4² = 5²

c = 5.0000

Step-by-step

1. c² = a² + b²

2. c² = 3² + 4²

3. c² = 9 + 16

4. c² = 25

5. c = √25

6. c = 5.0000

Area

6.0000

Perimeter

12.0000

Triangle inequality: ✓ Valid triangle

Right triangle: ✓ Yes