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Three Points Determine a Circle

Author:5P=1CS
Topic:Circle, Triangles
Three points determine a circle. This shows how to construct the center of the circle. Move the points A, B, C and make different circles. http://en.wikipedia.org/wiki/Circumscribed_circle http://en.wikipedia.org/wiki/File:Circumcentre.svg http://en.wikipedia.org/wiki/File:Triangle_circumcenter_alternate_construction.png Again, http://en.wikipedia.org/wiki/Circumscribed_circle http://en.wikipedia.org/wiki/File:Circumcentre.svg http://en.wikipedia.org/wiki/File:Triangle_circumcenter_alternate_construction.png These links are useful.

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