the ara of a circle is 301.84cm square find its circumfrence 

Asked by dhruvassaravana | 9th Jan, 2018, 10:22: PM

Expert Answer:

Area of a circle=πr2

So, circumference=2πr

πr2=301.84

begin mathsize 16px style straight r equals square root of fraction numerator 301.84 cross times 7 over denominator 22 end fraction end root equals 9.8
find space circumference end style

Answered by Arun | 9th Jan, 2018, 11:06: PM

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