3
depend how many points are them
Two pairs of alternate opposite angles
Eight.
20....or maybe 18
only 1 lines can contain 3 collinear points. Maybe you mean coplanar?
4*3/2 = 6 lines.
All angles are made up when two lines or sides vertexes or intersection points, I think.
5 its 4
Two are enough, if not coplanar.
"Non-coplanar" means "not all in the same plane". Non-coplanar points area group of points that no matter how hard you tried or how many differentpositions you checked, there's no way you could maneuver one flat sheetof paper around in space so that all of the points could all lie on the samepaper at the same time.Think of three corners of the floor, and one dot on the wall. No way that thosecould all be on the same big sheet of paper, no matter how you move it around.Any three points can always lie in the same plane. Four or more CAN beall in the same plane, but they don't necessarily have to be.
Coplanar lines can intersect an infinite amount of times.
2