Question

If length of one side of a 3x3 square is four times, and the length of the adjacent side is tripled, the perimeter of the new rectangle is how many times bigger than the perimeter of the original square?

please explain and show work.

Answer 1

One side is now 4*3 = 12 and the other side is 3*3 = 9 so the new perimeter must be 12+12+9+9 = ?
The original perimeter is 3+3+3+3 = ?
Now compare.