Perimeter = 93 x 2 + 63 x 2 = 186 + 126 = 312 feet
You have to say what or where point B and C is for me to answer it
Answer: A) 0
P(A and B) = 0 when events A and B are disjoint, aka mutually exclusive.
We say that two events are mutually exclusive if they cannot happen at the same time. An example would be flipping a coin to have it land on heads and tails at the same time.