Formula to find circumference of semicircle is
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½πr is the formula ............
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hii....
circumference of a complete circle = 2 π r
so , circumference of semi - circle = 2 π r ÷ 2 = π r
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hope this helps !
circumference of a complete circle = 2 π r
so , circumference of semi - circle = 2 π r ÷ 2 = π r
___________________________
hope this helps !
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