Answer:
B
Explanation:
92 x 49 = 4508 which is the area of the rectangle because you do length times height.
To Find the area of a circle you need to find the radius which is half of your diameter which is 20
20/2=10
Then for the area of your circle the formula is Pie r squared (π r^2)
Plug into your calculator π x 10^2 to get 314.16
Finally you subtract 314.16 from 4508 to get your answer 4193.84
Since on the sheet it looks like you have to round it would just round up to 42,000ft^2 which is B