横向
1
Corner point of a polygon
4
Middle value in an ordered dataset
6
Collection of distinct elements
7
Mathematical statement of equality
10
Amount of space an object occupies
11
Number with digits after a point
纵向
2
Proven mathematical statement
3
Steepness of a line
5
Round shape with all points equidistant
8
Power to which a number is raised
9
Divisible by two
12
Number that divides evenly into another