It's a lot easier and faster to open google, or a textbook, and learn for yourself. 
I tried searching for it but found nothing. I've read the rules and guidelines and as far as I remember there is no mention of what I'm asking. I could spend hours going through EW books just to see if there is something on this specific subject, but why when there exists a dedicated EW thread where I can ask the pro's directly and in addition get feedback/criticism on my counts (not to mention that others might also benefit from the answer)?However, I apologize if my questions are unwanted, and if chessnut tells me to I will stop posting.
Yes! It's called a running triangle and the triangle b makes a new price extreme beyond the origin of a.