横向
1
Space between two intersecting lines
4
U-shaped curve of a quadratic function
5
Corner point of a polygon
8
Repeated addition
12
Power to which a number is raised
13
Three-sided polygon
纵向
2
Visual representation of data
3
Longest side of a right triangle
6
Mathematical rule or equation
7
Single numeral from 0 to 9
9
Math using letters for unknown values
10
Parts per hundred
11
Distance from center to edge of circle