matthew042
New member
- Joined
- Feb 8, 2009
- Messages
- 15
I need help on this problem. I have tried it many times and I don't know how to attack it. In the diagram, angle XYZ = angle AXZ = 90 degrees. AX = XY, and angle XZD = angle YZD. Prove that ZD is perpendicular to AY. Thanks everyone.
[attachment=0:3jir4w8q]Picture.jpg[/attachment:3jir4w8q]
[attachment=0:3jir4w8q]Picture.jpg[/attachment:3jir4w8q]