Question

can you give me step wise explanation​

Answer 1

Answer:

Let r be the radius of the field.

Circumference of the field = $\frac{2640}{12} = 220m$

Now,

Circumference of circle = 2πr

220 = 2 × 22/7 × r

220/2 = 22/7 × r

110 = 22/7 × r

110 × 7/22 = r

35 = r

Hence, the radius of the field is 35cm.

Answer 2

Answer:

2640/12

Circumference = 220m

C=2πr

r=C/2π

r= (220/2×22)×7

r=5×7

r= 35m