Calculadora del Teorema de Pitágoras

How to use it

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Common mistakes

• ⚠️ Adding legs directly instead of squaring first (5.5 + 12.3 ≠ hypotenuse)
• ⚠️ Forgetting to take square root after adding the squares
• ⚠️ Using this fórmula for non-right triangles where it doesn't apply

Worked example

Find the hypotenuse of a right triangle with legs 5.5m and 12.3m for roof rafter calculation

The hipotenusa ({hipotenusa}) is the longest side opposite the right angle; area_triangulo ({area_triangulo}) is half the product of legs; perimetro ({perimetro}) is total boundary length.

Input guide