Lines rotate around their center point by default. The angle of the line can also be changed in
the Properties panel.Note
If you drag a line in the same trajectory as the original path, you will see the words
“Line Extension” and “on” appear at opposite ends of the line. These are part of Smart
Guides and make it easy to drag a line longer or shorter without changing the angle.
With the line selected, change the stroke weight to 15 pt in the Properties panel to the right of
the document.
Click the Stroke color box in the Properties panel, and make sure that the Swatches option ( )
is selected in the panel that appears. Select a lighter gray color with a tool tip of “C=0 M=0
Y=0 K=10.”