Question 1054877
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Hi..
on a clock the length of the hour hand is 3cm shorter than the minute hand. How much further does the minute hand travel 
compared to the hour hand in 12 hours if the hour hand is 5cm in length. 

I'm having problems understanding the textbook solution. 

Thanks
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The hour hand travel {{{2*pi*5}}} cm  (one revolution).


The minute hand travel {{{12*2*pi*(5+3)}}} cm (12 revolutions).


Calculate both and take the difference.