横向
1
Round shape with all points equidistant
5
Visual representation of data
6
Repeated addition
7
Space between two intersecting lines
9
Three-sided polygon
10
Collection of distinct elements
11
Total distance around a shape
12
The number representing nothing
纵向
2
Result of multiplication
3
Part of a line with two endpoints
4
Rectangle with four equal sides
8
Reference line in a graph