横向
1
Rectangle with four equal sides
4
The number representing nothing
5
Number with digits after a point
9
Space between two intersecting lines
10
Comparison of two quantities
11
Power to which a number is raised
纵向
2
Result of multiplication
3
Round shape with all points equidistant
6
Part of a circle's circumference
7
Lines that never intersect
8
Reference line in a graph