DRAW A PARALLEL LINE TO A STRAIGHT LINE r THAT PASSES THROUGH AN OUTSIDE POINT L
Step 1. From centre point L, draw an arc that intersects line r at point P.
Step 2. Use the same radius as the previous step. From centre point P, draw an arc that intersects line r at point Q.
Step 3. Use radius QL. From centre point P, draw an arc that intersects the arc from the first step at point R.
Step 4. Draw line m. This is parallel to line r.
DRAW A PARALLEL LINE TO A STRAIGHT LINE s, GIVEN THE DISTANCE d BETWEEN THE TWO LINES
Step 1. Place two points O and M on line s.
Step 2. Use the compass to draw a perpendicular line to s at O.
Step 3. Use the compass to draw a perpendicular line to s at M.
Step 4. Use radius d. From centre points O and M, draw the arcs that intersect the perpendicular lines at points P and Q.
Step 5. Draw the straight line p, which is parallel to line s.
