4.Find the cost of fencing a circular park with raduis 21m at the rate of 15 rupees per m . Also tell what is more - area or circumference of the circular park.plssss anssssssss​

1.circumference of circular park= 2πr

= 2× 22/7×21

= 42× 22/7

= 132m

cost of fencing of 1m= ₹15

so , cost of 132m = 15× 132

cost = ₹1980

area of park = πr^2

area= 22/7×21×21

area= 66×21

area =1386sq.m