横向
1
Single numeral from 0 to 9
3
Steepness of a line
6
Corner point of a polygon
9
Split into equal parts
11
Exact correspondence on both sides
纵向
2
Middle value in an ordered dataset
4
Part of a line with two endpoints
5
Total distance around a shape
7
Result of multiplication
8
Value that does not change
10
Round shape with all points equidistant