Question

a rectangular piece of land measures 0.8 km by 0.6 kilometre each side is to be fenced with three rows of wire find the length of the wire needed if the cost of fencing is rupees 50 per metre find the total cost of fencing the land​

Answer 1

Answer:

$\huge\mathfrak \pink{answer}$⤵️

Given length of rectangle field = 0.7 km

breadth of rectangle field = 0.5 km

Perimeter of rectangle field

= 2[l+b]=2[0.7+0.5]

Perimeter of field = 1.2×2=2.4km

length of filed fencing = 4P=4×2.4

length of fence = 9.6km✔

∴ length of wire needed is 9.6 km.