Question

how to find the cost of building a wall?

Answer 1

Hey,

Given, l = 500 m
and b = 400 m
Perimeter of a rectangle = 2(l+b)
         =2(500+400)
             =2*900
            =1800

Cost of fencing= Rs 1000/m


Cost of fencing around the plot
= Rs 1000 * 1800

= 【Rs.1800000】ANSWER...

HOPE IT HELPS:-))

Answer 2

Perimeter × Cost per metre

(500+500+400+400) × 1000

1800 × 1000

Rs. 18,00,000