Anyway you can put an image on? 45's can be tricky to read on an Iso in a nut shell its either a change in up and down direction or side to side horizontal direction you call it a triangle which is correct, I call it a half square which is in a since a right triangle. I teach print reading to apprentices so I use the box/square example, I don't know how to post images on this site, I need to learn so I can hopefully help you.