横向
1
Round shape with all points equidistant
4
Lines that never intersect
6
Number with digits after a point
10
Value that does not change
11
Sum divided by count
12
Proven mathematical statement
纵向
2
Space between two intersecting lines
3
Reference line in a graph
5
Collection of distinct elements
7
Visual representation of data
8
Power to which a number is raised
9
Line segment connecting two circle points