横向
1
Amount of space an object occupies
4
Part of a circle's circumference
5
Reference line in a graph
9
Math using letters for unknown values
10
Number with digits after a point
11
Parts per hundred
12
Line crossing from corner to corner
纵向
1
Corner point of a polygon
2
Steepness of a line
3
Middle value in an ordered dataset
6
Number less than zero
7
Line segment connecting two circle points
8
Result of addition