横向
1
Sum divided by count
5
Reference line in a graph
6
Proven mathematical statement
7
Split into equal parts
纵向
2
Visual representation of data
3
Longest side of a right triangle
4
Rectangle with four equal sides
5
Math using letters for unknown values
8
Repeated addition
9
Number divisible only by 1 and itself
10
Steepness of a line
11
Part of a line with two endpoints