The medium square has a side length of 2.1 feet. If the ratio of the side lengths of the medium square to the small square is 3 to 1, what is the side length of the small square?

Answer 1

1/3 = ss/2.1 where ss = side of the small square (not social security or Nazis' SS)

ss/2.1 = 1/3

ss = 2.1/3 = 21/30 =7/10 = 0.7 feet= 8.4 inches = 8 2/5 inches for each side of the small square. .7x12 = 8.4

ss=8.4 inches