I’ll do my best, but...
A. Since the area is 8100 sq ft and the shape is a square (area of a square = length x width) you take the square root of 8100 and get 90 ft as one of the sides. (90 ft x 90 ft = 8100 sq ft)
B. Yes, 8100 is a perfect square. A perfect square is a number made by squaring a whole number. It’s also the product of 2 equal integers. In this case, it’s 90.
Hope this helped, math isn’t my strong suit!
