A rectangular piece of land measures 0.7 km by 0.5 km. Each side is to be fenced with 4 rows of wires. What is the length of the wire needed?

A rectangular piece of land measures 0.7 km by 0.5 km. Each side is to be fenced with 4 rows of wires. What is the length of the wire needed?

To find the length of wire needed to fence a rectangular piece of land measuring 0.7 kilometers by 0.5 kilometers with 4 rows of wire on each side, you can calculate the perimeter of the land and then multiply it by the number of rows of wire.

First, convert the dimensions from kilometers to meters (1 kilometer = 1000 meters):

Length = 0.7 km = 0.7 * 1000 m = 700 m Breadth = 0.5 km = 0.5 * 1000 m = 500 m

Now, calculate the perimeter of the land:

Perimeter = 2 * (Length + Breadth) Perimeter = 2 * (700 m + 500 m) Perimeter = 2 * 1200 m Perimeter = 2400 m

Since there are 4 rows of wire on each side, you need to multiply the perimeter by 4 to find the total length of wire needed:

Total Length of Wire = Perimeter * 4 Total Length of Wire = 2400 m * 4 Total Length of Wire = 9600 meters

So, you would need 9600 meters of wire to fence the rectangular piece of land i.e. 9.6 km.