横向
1
Repeated addition
2
Reference line in a graph
5
Collection of distinct elements
6
Mathematical rule or equation
7
Line touching circle at one point
10
Amount of space an object occupies
11
Number less than zero
13
Distance from center to edge of circle
纵向
2
Space between two intersecting lines
3
Part of a line with two endpoints
4
Result of raising a number to an exponent
7
Three-sided polygon
8
Closed shape with straight sides
9
Value that does not change
12
Number with digits after a point