横向
1
Split into equal parts
4
Number that divides evenly into another
5
Line segment connecting two circle points
8
Parts per hundred
纵向
2
Distance from center to edge of circle
3
The number representing nothing
6
Mathematical statement of equality
7
Longest side of a right triangle
9
Round shape with all points equidistant
10
Total distance around a shape
11
Line touching circle at one point