横向
1
Parts per hundred
4
Reference line in a graph
5
Part of a line with two endpoints
6
Rectangle with four equal sides
8
Steepness of a line
9
Total distance around a shape
10
Line touching circle at one point
12
Number with digits after a point
纵向
1
U-shaped curve of a quadratic function
2
Line crossing from corner to corner
3
Difference between highest and lowest values
7
Three-sided polygon
11
Number greater than zero
13
Number that divides evenly into another