Tuesday, October 8, 2013

Finding the center of a circle

As I was working on a lazy Susan in my workshop the other day, I needed to find the center of a circle I had made (I had covered up the mark on the other side that I used for the compass).  Luckily I had paid attention in geometry (at least when I taught it), and used a couple of perpendicular chord bisectors.  Thanks, math!
find the center of a circle

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