Calculadora de Área de Rectángulo

How to use it

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Common mistakes

• ⚠️ Mixing different units (e.g., meters and centimeters) without conversion
• ⚠️ Using diagonal fórmula incorrectly by not squaring both sides first
• ⚠️ Forgetting to add waste factor when ordering materials based on area

Worked example

Calculate área and perimeter of a rectangular room measuring 8.75m by 4.25m for flooring estimation

The area_m² ({area_m2}) is the total surface for materials like flooring; perimetro ({perimetro_m}) helps estimate baseboards; diagonal ({diagonal_m}) verifies square corners.

Input guide