Try talking to him cause idk if I am wrong
13 floors is the correct answer
In the attachement, there is what I came up with so far. I think that finding 'a' is non-trivial, if possible at all.
- the area of a circle
- the area of a circular segment
At least about 20 points it can depend on the class but not really.
Your answer would be D.
Make this the brainliest answer if it helped!