横向
1
Round shape with all points equidistant
3
Result of multiplication
4
Rectangular array of numbers
5
Line crossing from corner to corner
6
Collection of distinct elements
7
Divisible by two
8
Math using letters for unknown values
纵向
2
Number greater than zero
3
Total distance around a shape
9
Part of a circle's circumference
10
Visual representation of data
11
Three-sided polygon