----- Original Message ----- From: "Jafta" To: Sent: Thursday, January 10, 2002 2:58 PM Subject: Re: [PIC]Find center point of circle? > Let's try this: > 1. Draw a line through the 2 points > 2. Where the line intersects the circle, draw a circle around each point > 3. Draw a line through the intersection of these circles > 4. Where this line intersects the 1st circle, draw a circle around each > point Which was the first circle? The one we don't know? > 5. Draw a line between the intersections of these circles > 6. Where the line in (5) and (3) intersect, is that not the center? For a given radius there are always two possible circles that go through two arbitrary points unless the points are exactly two radii apart. There is just not enough information available to resolve the matter no matter how many circles and lines you draw. /\/\/\/*=Martin -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body