横向
1
Math using letters for unknown values
3
Result of multiplication
5
Space between two intersecting lines
6
Comparison of two quantities
9
System of ordered marks for measuring
10
Amount of space an object occupies
11
Steepness of a line
12
Repeated addition
13
Proven mathematical statement
纵向
2
Rectangular array of numbers
3
Closed shape with straight sides
4
Lines that never intersect
7
Three-sided polygon
8
Line touching circle at one point
14
Round shape with all points equidistant