In square ABCD, AD is 4 centimeters, and M is the midpoint of CD. Let O be the intersection of AC and BM. Let P be the intersection of DO and BC. What is the ratio of BP to PC? Express your answer as a common fraction.
The ratio of BP to PC is 2:1. Also, the ratio of OC to OA is 2:5.
BP = PC
The ratio of BP to PC = 1:1
btw, the ratio of AO to OC = 2:1
the ratio of MO to OB = 1:2