Question

The length and breath of a rectangular field are 20 m and 15 m respectively.find the cost of fencing the field at 2Rs/m​

Answer 1

Answer:

total perimeter =2(20+15)

=70 m

cost of 1 m = 2 rs

cost of 70 m = 140(70*2)

Answer 2

Given,

L = 20 m

B = 15 m

Perimeter of rectangle = 2 (L + B)

= 2 (20 + 15)

= 2 (35)

= 70 m

Cost of fencing =

Perimeter × Cost of fencing per metre

= 70 × 2

= Rs 140

Hope it helps.