横向
1
Corner point of a polygon
3
U-shaped curve of a quadratic function
7
Visual representation of data
8
Value that does not change
9
Rectangle with four equal sides
10
Number less than zero
纵向
2
The number representing nothing
4
Longest side of a right triangle
5
Line touching circle at one point
6
Reference line in a graph
11
Number with digits after a point