The length of a rectangle is four times its width. If the perimeter of the rectangle is 80ft find its perimeter
Let the width of the rectangle be x and let the length be 4x.
The perimeter of a rectangle is given by the formula: P = 2(l + w)
Substitute the given information into the formula:
80 = 2(4x + x)
80 = 2(5x)
80 = 10x
x = 8
Now, we can find the length by multiplying the width by 4:
Length = 4(8) = 32 ft
Therefore, the width of the rectangle is 8 ft and the length is 32 ft.
Now we can find the perimeter using the formula:
P = 2(32+8)
P = 2(40)
P = 80 ft
So, the perimeter of the rectangle is 80 ft.