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

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

Re: Proving XY is perpendicular on :CD

I cant understand perfectly.Is there any diagram for this please provide it?

Thank you

Bizworldusa

Re: Proving XY is perpendicular on :CD