Pythagorean Theorem
How to use:
Pythagorean Theorem: In a right triangle, a² + b² = c²
Hypotenuse: The longest side, opposite to the right angle
Legs: The two sides that form the right angle
Example:
If a = 3 and b = 4, then c = √(3² + 4²) = √25 = 5
Verification: 3² + 4² = 9 + 16 = 25 = 5²
Online Pythagorean Calculator
Need to find the value of a side of a right triangle? Our Pythagorean calculator solves using the theorem automatically.
What is the Pythagorean Theorem?
The Pythagorean Theorem states that in a right triangle, the square of the hypotenuse equals the sum of the squares of the legs:
👉 Formula: a² + b² = c²
Where c is the hypotenuse and a and b are the legs.
How to use the Pythagorean calculator
- Enter the values of the known sides.
- Leave blank the side you want to calculate.
- Click Calculate.
✅ The result shows the exact value of the missing side.
Practical use examples
- Construction: calculate measurements of land and buildings.
- Geometry: solve right triangle exercises.
- Engineering and physics: apply to spatial and structural problems.
Frequently Asked Questions (FAQ)
Does the theorem apply to any triangle?
No, only to right triangles.
Can I use decimal numbers?
Yes, the tool calculates precisely.
Tips and curiosities
- Pythagoras was a Greek philosopher and mathematician who lived in the 6th century BC.
- The theorem is one of the foundations of geometry to this day.
➡️ Calculate the triangle side now with our Pythagorean tool!
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