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Circle, Circle, Triangle, Circle! (Posted on 2004-09-08) Difficulty: 4 of 5
Consider a circle O with a diameter AB, shown here in green. Draw a second circle (red) with diameter AC, such that C is on AB. Draw an isosceles triangle with base CB and third vertex D on circle O. Draw a third circle (X), tangent to the first three figures. Prove that the line from C to the center of circle X is perpendicular to AB.

No Solution Yet Submitted by SilverKnight    
Rating: 3.5556 (9 votes)

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  Subject Author Date
Can't be proven?Caz2005-11-06 22:17:27
re: TanDavid Shin2004-09-25 03:43:52
TanNithin2004-09-24 17:18:08
Error in SolutionDavid Shin2004-09-11 15:55:51
Geometry TheoryCelie2004-09-11 14:59:47
SolutionBractals2004-09-10 16:18:51
SolutionSolutionDavid Shin2004-09-09 16:09:12
Some Thoughtsre(2): First StepJim2004-09-09 12:16:41
Some Thoughtsre: First StepJim2004-09-09 11:44:50
Some ThoughtsFirst StepDan Blume2004-09-09 02:39:30
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