横向
1
Proven mathematical statement
4
Reference line in a graph
7
Mathematical rule or equation
9
Line segment connecting two circle points
10
Mathematical statement of equality
纵向
2
Lines that never intersect
3
Part of a whole number
5
Split into equal parts
6
Amount of space an object occupies
8
Number greater than zero
11
Three-sided polygon
12
Distance from center to edge of circle