If the perimeter is 240 feet, what are the dimensions of the rectangle?

Question

The width of a rectangle is 10 feet shorter than the length.

Answer 1

The perimeter (P) of rectangle is 240 feet.

Let x be the length (l) of rectangle.

The width (w) of rectangle is 10 feet shorter than the length and its expression .

The formula for perimeter of rectangle: .

Apply distributive property: .

Add 20 to each side.

Divide each side by 4.

The length of rectangle is 65 feet.

The width of rectangle feet.

The dimensions of rectangle is 65 feet and 55 feet.