横向
1
Round shape with all points equidistant
4
Value that does not change
5
Reference line in a graph
6
Number that divides evenly into another
7
Mathematical statement of equality
8
Collection of distinct elements
纵向
2
Total distance around a shape
3
Three-sided polygon
9
Difference between highest and lowest values
10
Line touching circle at one point
11
Power to which a number is raised
12
The number representing nothing