Paula’s living room is in the shape of a rectangle. it measures 20 feet long and 10 feet wide. what is the area of her living room? 30 square feet 60 square feet 100 square feet 200 square feet

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm