how to write a two column proof, proving corollary 4.4

Question

learning about two column proofs and triangles

Answer 1

Sharon,

 

You'll need to tell us what corollary 4.4 says in your textbook (as well as the original theorem that it is a corollary to) for anyone to be able to answer this question. Theorems and their corollary don't follow a universal numbering scheme.

 

Once you've told us what you want to try to prove then we can help you.