横向
1
Parts per hundred
4
Rectangle with four equal sides
5
Round shape with all points equidistant
6
Middle value in an ordered dataset
8
Proven mathematical statement
9
Line crossing from corner to corner
纵向
1
Lines that never intersect
2
Difference between highest and lowest values
3
Math using letters for unknown values
7
Collection of distinct elements
10
Part of a circle's circumference