横向
1
Space between two intersecting lines
2
Symbol representing unknown value
4
System of ordered marks for measuring
5
Round shape with all points equidistant
9
Result of raising a number to an exponent
10
Steepness of a line
纵向
2
Corner point of a polygon
3
Number less than zero
6
Lines that never intersect
7
Part of a whole number
8
Closed shape with straight sides