The angle between 9 and 12 is 90 degrees. The section for 11:50 is between the 10 and 11 pointers to make one-third of 90 degrees, or 30 degrees. Since the hour hand moves in regards to the minutes and is closer to 12:00, 11:50 represents 50/60 minutes or 0.83333*(30 degrees)= 25. Then I added 25 degrees +30 degrees= 55 degrees