横向
1
Exact correspondence on both sides
2
Line crossing from corner to corner
5
Part of a line with two endpoints
6
Longest side of a right triangle
7
Line touching circle at one point
8
Distance from center to edge of circle
纵向
1
Steepness of a line
2
Single numeral from 0 to 9
3
Rectangle with four equal sides
4
Visual representation of data