# Thread: What are the names of these theorems?

1. ## What are the names of these theorems?

Imageshack - parallellines.jpg

The theorem that maps....
A to D
A to E
A to H

2. Originally Posted by DarkLightA
Imageshack - parallellines.jpg

The theorem that maps....
A to D
" vertical angles".

A to E
"corresponding angles"

A to H
"alternate exterior angles"

3. Thanks a lot!