Why .785 works


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Posted by Jack Cain on Monday, February 07, 2005 at 5:56PM :

In Reply to: Measurements are after boring... posted by Jonas on Sunday, February 06, 2005 at 11:51PM :

A circle is always 78.5% of the square surrounding it.

So when you multiply Bore x Bore x stroke (same as width x depth x length) you are finding the area of a cube.

When you multiply the result by .785 you're finding the volume of the cylinder that is bounded by the interior of the cube.





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