
Nathan B. answered 03/22/18
Tutor
5
(20)
Elementary and Algebraic skilled
If 1 inch = 9 miles, and we have 3 inches, then we need to multiply:
3 * 9 = 27
So each side of the square is 27 miles long
The perimeter of a square is 4 equal sides, so you will need to multiply 27 and 4 (essentially 27+27+27+27).
The area of a square is the length times its width. So that means to find the area, you will need to multiply 27 and 27 together.
Solve those to get your final answers. Don't forget the proper units!