横向
1
Distance from center to edge of circle
3
Number that divides evenly into another
4
Longest side of a right triangle
5
Total distance around a shape
8
Math using letters for unknown values
12
Visual representation of data
13
Three-sided polygon
纵向
2
Mathematical statement of equality
3
Mathematical rule or equation
6
Repeated addition
7
Power to which a number is raised
9
Value that does not change
10
Collection of distinct elements
11
Line crossing from corner to corner