Question

A square piece of land has each side to $100$ m. If $3$ layers of metal wire has to be used to fence it. What is the wire needed ?

Answer 1

The given shape of the land is square
Side of the square is given as $100m$
Sides to be fenced are: $4$
Total wire required for one layer of fencing would be $4\times 100=400m$
Total wire required for three layers of fencing would be $3\times 400=1200m$