横向
1
Part of a line with two endpoints
4
Middle value in an ordered dataset
5
System of ordered marks for measuring
6
Distance from center to edge of circle
7
Result of multiplication
9
U-shaped curve of a quadratic function
10
Lines that never intersect
纵向
2
Sum divided by count
3
Math using letters for unknown values
5
Collection of distinct elements
8
Proven mathematical statement
11
Comparison of two quantities
12
Part of a circle's circumference