Question

a square piece of ground is 75meter long. find the cost of e r e c t i n g a fence round it at rupees 40 per metre

Answer 1

perimeter of a square =4× side =4×75=300

cost of fencing it = 300×40= rs12000

Answer 2

Perimeter of square=4a
= 75 m×4
=300 m

hence,
₹40 per matre
So, ₹40×300
= ₹12000

HOPE IT WORK