横向
1
Three-sided polygon
2
Result of addition
5
Lines that never intersect
6
Part of a line with two endpoints
7
Longest side of a right triangle
8
Rectangle with four equal sides
9
Number divisible only by 1 and itself
纵向
2
Exact correspondence on both sides
3
Split into equal parts
4
The number representing nothing
5
Closed shape with straight sides
10
Line touching circle at one point