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The circumference of a circle exceed its diameter by 180cm .what is radius of its |
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Answer» 42cm Given that, Circumfrence=diameter+180 2πr=2r+180 2(πr)=2(r+90) πr=r+90 πr-r =90 r(π-1)=90 r(22/7-1)=90 r(22-7/7)=90 r(15/7)=90 r=90×7/15 r=630/15 r=42 17.14 |
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