Question 841593
In an hour, the tip of the hand would move
the entire circumference of the clock
{{{ C = 2*pi*r }}}
{{{ C = 2*pi*6 }}} in
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From 3 to 5 o'clock is {{{ 2/12 }}} of the 
distance around, so the tip of the hand moves
{{{ d = (2/12)*2*pi*6 }}}
{{{ d = 2*pi }}}
{{{ d = 6.28 }}} in