Answer:
The width of the rectangular park is 40m.
Explanation:
We are given that the area of a square has the same area as the rectangle (the fact that they're parks doesn't matter)
We are also given one length side of the square, and since squares have all equal sides, we know all the side lengths are 60m.
To find Area, we do L * W, so it would be 60 * 60 = 3600.
That means the area of the rectangle park is 3600m. One side of the rectangle is 90m, so the formula is L * W = A. So we plug in known values of the rectangle which would be 90 * W = 3600. To find W, we do 3600/90 which is 40.
Let me know if you have any questions