3 intersecting lines, because none of the three points are right angles.
4 points of intersection, meaning 4 lines
In a plane, only one.
There are 20 common points.
If no pair of lines is parallel and if each pairwise intersection is distinct, there will be 10 points of intersection.
If no pair of lines is parallel and if each pairwise intersection is distinct, there will be 6 points of intersection.
one solution
4
there are 4 intersecting lines
Two intersecting lines can always cover three non-collinear points.
A minimum of two.
exactly one