Question

When constructing parallel and perpendicular lines, how are the steps similar?

Answer 1

Intersecting arcs are created and connected.

Answer 2

Similar steps:

1. You need to draw a reference line first( It's trivial but hey, it's similar)

2. You need to draw the other line with pre-defined slope( parallel with same slope, perpendicular with the product of the slope to be -1)