横向
1
Part of a whole number
4
Steepness of a line
7
Lines that never intersect
8
Corner point of a polygon
9
Line segment connecting two circle points
10
Single numeral from 0 to 9
11
Distance from center to edge of circle
13
Number that divides evenly into another
纵向
2
Middle value in an ordered dataset
3
Symbol representing unknown value
4
Exact correspondence on both sides
5
Longest side of a right triangle
6
Mathematical statement of equality
12
Part of a circle's circumference