横向
1
Line segment connecting two circle points
4
Power to which a number is raised
6
Part of a circle's circumference
7
Space between two intersecting lines
9
Divisible by two
11
Total distance around a shape
纵向
2
Lines that never intersect
3
Proven mathematical statement
5
Exact correspondence on both sides
8
Number less than zero
10
Line touching circle at one point