横向
1
Repeated addition
6
Corner point of a polygon
7
Part of a circle's circumference
9
Line crossing from corner to corner
10
Round shape with all points equidistant
12
Proven mathematical statement
纵向
2
Split into equal parts
3
Closed shape with straight sides
4
Three-sided polygon
5
Amount of space an object occupies
8
Collection of distinct elements
11
Total distance around a shape
13
Mathematical rule or equation
14
Difference between highest and lowest values
15
Middle value in an ordered dataset