Help with Non-Triangle Proof Needed

[prior]

can someone help me with another proof?
it isn a triangle proof but this is the closest forum chat i could find

 

[Ackbach]

You need to make a new thread if you have a new question, rather than tagging onto existing threads, as per http://mathhelpboards.com/rules/. I have moved your post into a new thread, so please ask your question here.