line, place the point of the compass on the given line,
and swing a series of light arcs along the given line.Step 2: using an irregular curve, draw a line along the extreme
high points of the arcs.
Figure 4.13 Example on how to draw parallel curved line
G. How to Draw a Perpendicular Lines to a Line at a Point
Method 1
Given: Line A-B with point P on the same line.
Step 1: Using P as a center, make two arcs of equal radius or
more continuous arc (R1) to intercept line A-B on
either side of point P, at points S and T.