横向
1
Divisible by two
3
Middle value in an ordered dataset
4
Number that divides evenly into another
5
Three-sided polygon
7
Lines that never intersect
11
Number divisible only by 1 and itself
纵向
1
Mathematical statement of equality
2
Value that does not change
6
Rectangle with four equal sides
7
Number greater than zero
8
Steepness of a line
9
Space between two intersecting lines
10
Part of a line with two endpoints
12
Exact correspondence on both sides