a rectangular piece of land measures 0.7 km by 0.5km each side is to be fenced with 4rows of wires.What is the length of wire needed?
Not sure what you mean by "rows" of wires. If you just need to find the perimeter of the rectangle, that is
2(0.7+0.5) km
To find the length of wire needed, we first need to calculate the perimeter of the rectangular piece of land.
The perimeter of a rectangle is calculated by adding the lengths of all its sides. In this case, we have two sides that measure 0.7 km and two sides that measure 0.5 km.
So, the perimeter can be calculated as follows:
Perimeter = 2 * (Length + Width)
Let's substitute the given values:
Perimeter = 2 * (0.7 km + 0.5 km)
Now, let's simplify the equation:
Perimeter = 2 * 1.2 km
Perimeter = 2.4 km
So, the perimeter of the rectangular piece of land is 2.4 kilometers.
However, since each side is supposed to be fenced with 4 rows of wire, we need to multiply the perimeter by 4 to account for all sides.
Total Length of wire needed = Perimeter * 4
Total Length of wire needed = 2.4 km * 4
Total Length of wire needed = 9.6 km
Therefore, the length of wire needed to fence the rectangular piece of land is 9.6 kilometers.