Question

The radius of a circular plot is 7m. How much will
it
cost to fence the plot with 4 rounds of wire at
the rate of 60 rs per meter.​

Answer 1

since we are going to fence only the circumference

C= 2πr

= 2× 22/7 × 7m

= 44m

Rate= Circumference× rate/m × number of rounds

= 44m× ₹60/m × 4

= ₹176× 60

= ₹10560