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January 31, 2015

January 31, 2015

Posted by **jill** on Tuesday, December 7, 2010 at 11:33pm.

Also to find the circumference of a circle do you use the radius or diameter x 3.14?

- 5th grade math -
**Dr Russ**, Wednesday, December 8, 2010 at 7:00amThe 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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