Arectangular school gym has a length of 120 feet and a perimeter of 520 feet. what is the width, in feet, of the school gym?

Hi, P = l+l+w+w 520-120-120= 280÷2 w = 140ft

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's