How to change the ending of a line in Illustrator

Question

Is there a way to change the shape of a line ending by choosing an angle with Adobe Illustrator?

Making something like this:

I know that you can do this with a square, but if there is a solution to do the exact same thing with a line! :D

Answer 1

Yes you can use calligraphic brushes if you want the angle to be relative to document.

No, you can not do this if you want it to be relative to the curve. You can fudge it so that the line has a slanted edge but then the line itself has to go past the point your now at (line has to be past the poits tangency). Or you can put a clipping mask around it. Or you can make a custom arrow. Or you can expand and skew inside a effect, But again this couldn't account for the orientation of the line.