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Um... looking around. It's in the Course III math textbook here at Ithaca High School in the circles section. "McDougal, Littell Integrated Mathematics Course 3". It's Canadian.
Rather than using that theorum, after drawing that circle, you could have drawn radii of 13 to each goal post, forming a triangle, 13,10,13... half of which is 13,5,y... y=12. You can justify that y=x because x is greatest at the point of tangency of the circle and also that x and y are parallel and some other things which make them equal. I like your proof very much because it justifies things clearly and easily.
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Code Red Robotics Team 639 Alumnus | www.team639.org
<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls
Last edited by Yan Wang : 28-01-2003 at 23:13.
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