In a triangle $ABC$ $XY$ is drawn parallel to $BC$ cutting $AB$ and $AC$ in $X$ and $Y$, respectively.Prove that $BY$ and $CX$ intersect on the median through $A$. I have tried using Menelaus theorem on $\triangle ABO$ where $O$ is the intersection of the median through $A$ and the line $BC$ and $BC$ is the extended line
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Did you try a vector approach? Consider vectors $kB,kC$ – Narasimham Sep 08 '18 at 20:01
