横向
1
Line crossing from corner to corner
5
Mathematical statement of equality
8
Round shape with all points equidistant
12
Middle value in an ordered dataset
纵向
2
Symbol representing unknown value
3
Lines that never intersect
4
Amount of space an object occupies
6
Part of a line with two endpoints
7
Reference line in a graph
9
Parts per hundred
10
Result of multiplication
11
Mathematical rule or equation