This is a fun problem! We can solve it using the Law of Sines. Here's how:
sin(B)/AC = sin(A)/BC
Substituting the given values, we get:
sin(65)/210 = sin(45)/AB
Solving for AB (the distance between Deon and Mai), we find that AB is approximately 162.6 meters. So, Deon and Mai are about 162.6 meters apart.