If perimeter of semicircle area is 180m find diameter
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perimeter of semicircle = pie r = 180
r = 180/3.14 = 57.3
diameter = 2r = 2(57.3) = 114.6
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Answer:
perimeter of the semi — circle area = pi r + 2r. 180 = 22by 7 r + 2r. 180 = r ( 22 by 7 ×2 ). 180 = 36 by 7 . 180 = 7 by 36. 5 × 7 = 35 r. r 35. diameter of the circle = 2×r. 2× 35 = 70
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