Question

1. what is the difference between perpendicular lines and non - parallel lines?

Explanation:

Perpendicular lines intersect at a 90 - degree angle. Non - parallel lines just don't run side - by - side but their intersection angle can be any value other than 0 degrees (parallel) or 180 degrees (co - linear). So the key difference is that perpendicular lines have a specific 90 - degree intersection angle, while non - parallel lines can intersect at any non - 0 and non - 180 degree angle.

Answer:

Perpendicular lines intersect at a 90 - degree angle, while non - parallel lines can intersect at any angle other than 0 and 180 degrees.