No registration required!

Easy

1 post • Page 1 of 1

by eternal » Wed Oct 17, 2007 1:48 pm

Let quadrilateral [tex]ABCD :AB=AD,\angle ABC=\angle ADC=90°[/tex]
[tex]E\in CD,F\in BC,AE\bot DF[/tex]
Prove that:[tex]BE\bot AF[/tex]

eternal: Posts: 8; Joined: Wed Oct 17, 2007 1:33 pm; Reputation: 1

1 post • Page 1 of 1

Users browsing this forum: No registered users and 2 guests