Sol of 4 circumference and area of circle
Dear Sir
22/7×r2=138600⇒
r==210m
Perimeter =22/7×2×210=1320m
Required cost =1320×rs 60/100=Rs 792
Regards
Since, Area=13.86×10000m2=138600m2
∴πr2=138600m222/7×r2=138600⇒
r==210m
Perimeter =22/7×2×210=1320m
Required cost =1320×rs 60/100=Rs 792
Regards