The projection screen in the school auditorium is five times as long and 5 times as wide as the screen in the library. The screen in the library is 4 feet long with a perimeter of 14 feet. what is the perimeter of the screen in the auditorium?
Library width is 3 and the length is four. Multiply those two numbers by 5 to get the answer for the auditorium. It would be width is 15 and length is 20.
