The number of regions into which a plane is divided by n lines in generic position
16582
Show that $n$ lines separate the plane into $\frac{n^2+n+2}{2}$ regions
148169
prove that line bisect section
2217
Total number of lines in a 2D grid
22540
Bisecting line segments in a tetrahedron.
82372
Calculate possible lines from points
117862
Number of partitions of an $n$-element set into $k$ classes
24477
Monochromatic squares in a colored plane
76029
Induction proof: n lines in a plane
119681
How to show whether 3 planes have a common line of intersection
42945
Find the minimal number of guard points of polygon
85972
Name for region between two parallel planes
13304
Split a plane into smaller plane objects
88356
Number of options to distribute $N$ different balls to $K$ numbered cells
44214
The number of subsets of a set of cardinality $n$
137072
Number Of Distinct Paths In A Rectangular Grid
6432
How many ways can N elements be partitioned into subsets of size K?
120684
Calculating the number of possible paths through some squares