How to cut line in a face without Knife? I have this square and I want to make cut along the green lines.



The problem is, I try to use the knife tool (K+C) and the proper camera angling to connect the vertices and the edge, but the knife wont cut.

I want to be able to "loop divide" (line?) the face and drag a line so I can line the needed line to it's location. Or, atleast get the knife tool working properly.

How can I do this?
Knife should work for this:



I suspect the darker face on the right is the result of a second, super-imposed face which is preventing the knife tool from working. To fix it, delete the face or use W> Remove Doubles:



That said, there might be a faster way to get the desired result, for example Subdivide and Bevel:



I also used triangulate (&#9096; CtrlT) at the end; not sure if those diagonal edges were desired or not.