A quadrilateral ABCD with \BAD + \ADC > 180 circumscribes a
circle of center I. A line through I meets AB and CD at points X and Y
respectively.
If IX = IY then what is (AX ¢ DY )=(BX ¢ CY )?
what does the sign "¢" mean?
BdMO National Secondary 2008/10
Re: BdMO National Secondary 2008/10
Oh the pdf posted online has typo...(If fact this is non-sense). BTW here is the original problem: viewtopic.php?f=13&t=608
One quick tip: search the forum before posting as there is a good chance (especially if it is a bdmo problem) it is already here.
One quick tip: search the forum before posting as there is a good chance (especially if it is a bdmo problem) it is already here.
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin
Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.
Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.