what is the perimeter of semicircle
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The perimeter of any shape is the total length of all its sides. Since a circle has no sides, its perimeter (also known as its circumference) is the length of the circle's exterior. The formula for a circle's circumference, C, is C = 2 * pi * r, where r is, again, the circle's radius.
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perimeter of semicircle is 1/2π×D ....mark as best plz
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