Probability help?

Let O(0, 0), A(6, 0), B(6, 6), C(0, 6) let M be the midpoint of OB. find the probability at random:
A) Farther from O than from M.
B) More than twice as far from O as from M.

Answer for a:7/8
answer for b: pi plus 2 over 9
1 answer 1