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If the perimeter of semicircular protractor is 36cm,find its diameter. |
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Answer» 11.45 is wrong answer ? 2r+πr=36......... r(2+π)=36......... r{2+22/7}=36........ r(36/7) =36 ...... r=7 ...... Diameter = 2(7) =14cm 11.45 |
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