Posted by jill on Tuesday, December 7, 2010 at 11:33pm.
The diameter of a penny is 3/4 in. How many pennies are needed to form a row 12in. long?
12 divided by 3/4
Also to find the circumference of a circle do you use the radius or diameter x 3.14?
The circumference of a circle is
3.142 x diameter
or
2 x 3.142 x radius
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