Hi, I'm on AutoCAD 2012 student version, Penn Foster Civil Drafting Plate 2, and I keep getting an error message "Cannot fillet between these two entities". I'm trying to fillet between a circle and a line (west quadrant). The circle radius is 25 and the fillet radius is 20. My main concern is that I am quite certain I have drawn all the entities correctly, and if I can't fillet this, I can't proceed with the rest of my drawing. It's for a cul-de-sac at the end of a driveway.