the hour hand is turned 4/12th of a whole circle, which is 360 degrees, so 4/12 * 360 deg = 120 degrees is the angle between the hour hand and the minute hand at 4 o' clock
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229.1832 degrees
The minute hand will be 4/12 = 1/3 of 360 degrees clockwise from up, so 120 degrees. The hour hand will be 10/36 = 100 degrees clockwise from up. 120 - 100 = 20 degrees.
Type your answer here... At 3:15, the hours hand is not pointing at "3". It would have moved forward and is somewhere between 3 and 4. In 12 hrs, the hours hand completes 360 degrees i.e. one full circle. Therefore, in 15 mins (1/4 hr), the hours hand would have moved (1/4) * (360/12) = 7.5 degrees. (In this example, the hours hand is 7.5 degrees from "3") The minutes hand at 3:15 is ponting at "3" on the clock. Therefore, the angle between the hands of a clock at 3:15 is 7.5 degrees.
1/4 x 90 degrees = 22.5 degrees