formula for perimeter of half circle
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The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2nr or and. So, the perimeter of a semicircle is 1/2 (nd) +d or πr + 2 r, where r is the radius.
hope it's helpful to you...
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l hope it will help you
half of circle is also called semicircle
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