横向
1
Corner point of a polygon
4
Single numeral from 0 to 9
5
Reference line in a graph
6
Amount of space an object occupies
7
Line touching circle at one point
8
Number less than zero
10
Result of raising a number to an exponent
纵向
2
Middle value in an ordered dataset
3
Power to which a number is raised
9
Part of a line with two endpoints