Step 2: Project auxiliary view a perpendicular to plane 1F-2F-
(^3) F. The line of sight for this projection is parallel to the
plane and parallel to the true length line 1F-4F. Draw
F/A perpendicular to 1F-4F and complete auxiliary
view A by projection.
Step 3: Auxiliary view a shows the line 1A-4A as a point view
and therefore plane 1A-2A-3A appears as an edge
view.
Figure 7.23 Edge view of a plane