Trim and Extend Entities (Manually) in a Sketch
I'm using Creo 4.0. I have a line in a Sketch that I am dragging back (selecting the line and Ctrl select the endpoint) to an endpoint of another line, hoping that it will automatically create a coincident constraint and close my sketch (At least that's what happened on the YouTube tutorial I was watching). I'm having no luck with this. I'm aware that I could use the CORNER command, but I would just like to know why this isn't working for me?

