横向
1
Distance from center to edge of circle
5
Number greater than zero
7
Result of multiplication
9
Three-sided polygon
12
Symbol representing unknown value
纵向
2
Part of a whole number
3
Mathematical statement of equality
4
Steepness of a line
6
Line segment connecting two circle points
8
Comparison of two quantities
10
Visual representation of data
11
Line touching circle at one point