横向
1
Visual representation of data
4
Repeated addition
5
Collection of distinct elements
6
Three-sided polygon
7
System of ordered marks for measuring
8
Longest side of a right triangle
纵向
2
Distance from center to edge of circle
3
U-shaped curve of a quadratic function
9
Steepness of a line
10
Proven mathematical statement
11
Math using letters for unknown values