it's actually pretty simple, you draw the line vertically, the draw three parallelograms representing the planes around the line almost making it like a 3D shape....
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a plane is just a flat surface, so any three lines that intersect (as long as they are not drawn as the edges on a 3-D solid) should work
Lines don't intersect:- 1) When lines are parallel 2) When lines don't lie on same plane
The only lines that are in the same plane that do not intersect are: 1. Lines of finite length (eg 1 6" line on the floor at one end of the room and another 8" line at the other end) 2. Parallel lines
If two lines in the same plane intersect to form a right angle, then their slopes are negative reciprocals. Representing their slopes by sa and sb, then sa = -1/sb .
Parallel lines don't intersect, no matter how many of them there are.
Not necessarily, as two lines can exist in one plane, but they don't always touch each other. An example would be parallel lines, where the lines are parallel to each other. Lines are also not necessarily straight all the time as it can be curvy too, wherein that a straight line or another curvy line that "does" touch the first curvy line could possibly intersect at more than one point.