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Geometry calculators compute areas, perimeters, volumes, and angles for the most common two- and three-dimensional shapes. They are used in construction, design, education, and everyday measurement tasks.

Guide étape par étape

1. 1Circle: area = πr² · circumference = 2πr
2. 2Rectangle: area = length × width · perimeter = 2(l + w)
3. 3Right triangle: a² + b² = c² (Pythagorean theorem)

Exemples résolus