plane
400
Points and lines on the same plane are coplanar.
There are 91 lines.
In a plane, only one.
plane
36
Yes- planes contain infinitely many points and every pair of points in plane determine a line in that plane, so every plane contains infinitely many lines.
infinite number of lines
20 regions
It has 2 lines of sym
400
Points and lines on the same plane are coplanar.
All non-parallel lines in a plane will intersect at some point in the plane.
3 lines and one plane
There are 91 lines.
Two lines that do not intersect on the same plane are Parallel lines.