Sari is creating a dog run space in her backyard. She has 40 feet of fencing to go around the outside, and she wants to make it rectangular with a width of 8 feet. What will the length be, in feet? (1 point)

1 answer

To find the length, we need to subtract the width from the perimeter of the rectangle.

The perimeter of a rectangle is given by the formula: perimeter = 2(length + width)

In this case, the perimeter is 40 feet, and the width is 8 feet.

40 = 2(length + 8)

Divide both sides of the equation by 2:

20 = length + 8

Subtract 8 from both sides of the equation:

12 = length

Therefore, the length will be 12 feet.