BMAD Posted February 16, 2014 Report Share Posted February 16, 2014 Here is a classic puzzle: Triangle ABC and BCD are isosceles. AB = BC = DC and AY=AX. What else can you infer from this? Quote Link to comment Share on other sites More sharing options...
0 BMAD Posted February 18, 2014 Author Report Share Posted February 18, 2014 Also assume that AX is a line and AY is a line Quote Link to comment Share on other sites More sharing options...
0 phil1882 Posted February 19, 2014 Report Share Posted February 19, 2014 well angle DAC = 1/3 *angle BCX Quote Link to comment Share on other sites More sharing options...
0 fabpig Posted February 20, 2014 Report Share Posted February 20, 2014 Not sure how basic or otherwise you want us to be, so some to go on with..OBAC = ODBC/2OABC = OCDY by extension of Phil's inference: OBAC = (180 - OBCD)/4 Quote Link to comment Share on other sites More sharing options...
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BMAD
Here is a classic puzzle:
Triangle ABC and BCD are isosceles. AB = BC = DC and AY=AX. What else can you infer from this?
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