The difference between constructing perpendicular lines and constructing parallel lines is that Parallel lines are lines in a plane that are been constructed at the same distance apart and as a result of this they can never intersect while Perpendicular lines on the other hand are lines that intersect at a right which is (90 degrees) angle.
To construct a perpendicular from a point at a given line segment:
Learn more about perpendicular lines at:
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