横向
1
Space between two intersecting lines
3
Round shape with all points equidistant
6
Longest side of a right triangle
8
Repeated addition
9
Line touching circle at one point
10
Symbol representing unknown value
11
Middle value in an ordered dataset
12
Total distance around a shape
纵向
2
Steepness of a line
4
Part of a circle's circumference
5
Mathematical statement of equality
7
Difference between highest and lowest values