横向
1
Middle value in an ordered dataset
4
Distance from center to edge of circle
6
Symbol representing unknown value
7
Lines that never intersect
8
Part of a circle's circumference
9
Line segment connecting two circle points
纵向
2
Number with digits after a point
3
Three-sided polygon
5
Parts per hundred
10
Number that divides evenly into another
11
Space between two intersecting lines
12
Result of addition