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cirles are 8cm and 6cm respectively. Find the radiusf(D) 2cmThe radi of twos ofwhich has arhasA) 14cmqual to the sum of the area of the two circles ?(B) 12cm(C) 10cm |
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Answer» Sum of areas of the two circles is π[r1^2+r2^2]Sum=22/7((8)^2+(6)^2)=22/7(64+36)=22/7*100=π100cm^2Hence radius of a circle with sum of areas =πr^2=π100r^2=100r=10cmoption c |
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