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To find the perimeter of a polygon, add the lengths of all its sides together. For example, for a rectangle, the perimeter is calculated as ( P = 2 \times (length + width) ). For a triangle, simply sum the lengths of all three sides. If you're dealing with a circle, the perimeter is referred to as the circumference, calculated using the formula ( C = 2\pi r ), where ( r ) is the radius.

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∙ 1y ago
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