Question

a play ground which is 250m long and 20 m broad is to be fenced with wire.how much wire is needed?

Answer 1

Length of playground= 250m
Breadth of playground= 20m
Perimeter of rectangle= 2 [l + b]
= 2[250+20]m
=2× 270m
=570m 
so, wire of 570m is needed. 
Please mark as the BRAINLIEST answer if helpful.

Answer 2

Fencing = Perimeter
So, to fence a playground we have to find the perimeter of the playground.
That is
2(l+b)

length = 250 meter
breadth = 20 meter
Perimeter = 2(l+b)
                 = 2(250+20)
                 = 2(270)
                 = 540 meters
540 meters of wire is needed to fence that field