Question

Did I get it right it’s number 7

Answer 1

yes, you're correct. pi*16^2 is around 804-5, depending on rounding. the diameter of the circle is the side length of the square, so it's thirty two. 32 squared is the square's area, which is 1024. 1024 minus approx. 804 is 220,so you are correct.

Answer 2

The answer is 804.25 ft squared