At 12 o'clock, the minute hand points at 12, and the hour hand also points at 12. Since both hands are aligned, the angle between them is 0 degrees. Therefore, the angle between the hands of a clock at o'clock is always 0 degrees.
270 degrees
get yourself a cartesian circle, or just look at one online and translate it from there 3,6,9, and 12 would all be 90 deg increments.
It is a obtuse angle.
obtuse
90 degrees
30 degrees
270 degrees
120 degrees and 240 degrees.
It is a obtuse angle.
get yourself a cartesian circle, or just look at one online and translate it from there 3,6,9, and 12 would all be 90 deg increments.
At 3 hours 45 minutes there is not an acute angle between the hands of the clock (unless you extend the hands backwards).
150
30 degrees.
60o
obtuse
120degrees
90 degrees