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Posted in response to A Question For You Math Heavy Hitters from Bob Place on October 04, 2009 at 10:07:07:

Re: A Question For You Math Heavy Hitters

Bob - Here's an online calculator for the circumference of an ellipse. You can play with the numbers to get the circumference you want.

For example, that 40mm x 30 mm cab = ~111mm circumference.
A standard 18mm x 13 mm cab = 49.32mm. Pretty close!

http://www.csgnetwork.com/circumellipse.html

From Rich T. - October 05, 2009 at 11:00:32

Message: 68393


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