Question

The area of squre plot is 6400 m squre find the length of wire which can go 6 times along the boundry

Answer 1

Area of square = s×s
Therefore, s×s = 6400 = 8×8×10×10
This gives s=80
Perimeter(boundary) =4×s = 4×80 = 320
Wire goes 6 times, so 6×320 = 1920

Answer 2

area of square = s×s
s×s=6400msquare
s=√6400msquare
s=80m
so perimeter of square =4×s
4×80=320
6 time along the boundary
6×320=1920m