The diameter of semi circle if Perimeter is 72
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πr + 2r = 72
r ( 22/7+ 2 ) = 72
r (36/7)= 72
r = 72 × 7 /36= 2 ×7 = 14
then ,
diameter = 2 r = 2 × 14 = 28
r ( 22/7+ 2 ) = 72
r (36/7)= 72
r = 72 × 7 /36= 2 ×7 = 14
then ,
diameter = 2 r = 2 × 14 = 28
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