<PRE><B>Question 953879</B>
A coin covers 7 sq cm. 
{{{Area = pi*r^2 = 7}}}
Solve for the radius (in cms)
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How many times will the coin turn as it rolls down a meter stick?
Each turn moves the circumference.
C = (2pi*r) cm
1 meter 100 cms
# of turns = 100/C

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