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Re: Finding the center of a circle

To: Bill Gilroy <w.gilroy@verizon.net>
Subject: Re: Finding the center of a circle
From: Drew Rogge <drew@pixar.com>
Date: Thu, 02 Aug 2001 08:13:54 -0700
Bill,

One way is to use a pair of dividers. Set the distance between the
points to something a bit over the circle's radius. From four points
approximately 90 degrees apart on the circles circumference, sweep
small arcs close to where you estimate the center to be. Be sure
that each small arc intersects the two which are adjacent to it.
Now draw lines through the arc intersections which are diametrically
opposed to each other. The intersection of these two lines is the
center of the circle.

Hope this is clear enough.

Drew

Bill Gilroy wrote:
> 
> I have a circle and I want to find the center so I can use a hole
> saw to cut a hole.  What is the simplest way to find the center of the
> circle?
> 
> --
> Best regards,
>  Bill                          mailto:w.gilroy@verizon.net
> 

-- 
Drew Rogge
drew@pixar.com

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