Monday, 7 December 2015

To find the center of a given circle


To find the center of a given circle
This method for finding the centre, and by extension the equation, of a circle given three non-colinear points, brings the ancient textbook master Euclid onto Descartes’ coordinate plane.

Animation: jpedmaths
Read and learn:
http://aleph0.clarku.edu/~djoyce/elements/bookIII/propIII1.html

#math   #euclid
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2 comments:

  1. Patrick Horgan7 December 2015 at 23:44

    Here's a proof for you Liz Krane

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  2. John Bump8 December 2015 at 09:24

    The most awesome thing about geometric proofs is the moment you see them you go "of COURSE!" and feel like a doofus for not having thought of that yourself.

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