Saturday, August 25, 2012

What is the angle between the minute and hour hands of a clock at 6:10 PM?Well I think it is 125 degrees but it might be 126. So i'm not sure.

To determine the angle between the hour hand and the minute hand
at 6:10PM.


We know the one round of the clock is 360 degrees. So the
hour hand covers this in  12 hours =12*60 minutes = 720 minutes. So every minute the hour hand
covers 360 /720 = 1/2 degree. So at 6:10 hours = 6*60+10 minutes = 370 minutes, the hour hand
describes an angle of 370*1/2 = 185 degree from 12 o'clock
position.


We assume the angles in degrees are measured from the  12
O'clock position.


The minute hand  covers one round in 60 minutes.
So every mnute it covers 360/60 = 6 degree. Therefore the minute hand at 10 minutes past 6
o'clock  should describe an angle 10*6 = 60 degree from the postion of the number 12 (or when  it
was at 6 o'clock postion).


Therefore the angle between the hour hand
and minute hand is the difference of the angle they described from the 12 O'clock position. So
the angle between the clock hands at 6:10PM = 185 deg - 60 deg = 125
degree.

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