横向
1
Space between two intersecting lines
4
Line crossing from corner to corner
5
Number greater than zero
7
Result of raising a number to an exponent
9
Part of a circle's circumference
纵向
1
Math using letters for unknown values
2
Divisible by two
3
Symbol representing unknown value
6
Steepness of a line
8
Round shape with all points equidistant