# Proving XY is perpendicular on :CD

• Aug 25th 2012, 10:52 PM
Mhmh96
Proving XY is perpendicular on :CD
In cyclic quadrilateral :ABCD the point :E is in the middle of:BC, the perpendicular on :BC pass the point:E and intersect :AB in:X ,and the perpendicular on:AD pass the point:E and intersect :CD in :Y ,what is the proof that: XY is perpendicular on :CD
• Aug 26th 2012, 07:32 AM
topsquark
Re: Proving XY is perpendicular on :CD
Quote:

Originally Posted by Mhmh96
In cyclic quadrilateral :ABCD the point :E is in the middle of:BC, the perpendicular on :BC pass the point:E and intersect :AB in:X ,and the perpendicular on:AD pass the point:E and intersect :CD in :Y ,what is the proof that: XY is perpendicular on :CD

Is there a diagram for this? I can't seem to construct it.

-Dan
• Aug 27th 2012, 08:05 AM
bizworldusa
Re: Proving XY is perpendicular on :CD
I cant understand perfectly.Is there any diagram for this please provide it?
Thank you
Bizworldusa
• Aug 27th 2012, 03:17 PM
Mhmh96
Re: Proving XY is perpendicular on :CD