横向
1
System of ordered marks for measuring
2
Amount of space an object occupies
4
Mathematical statement of equality
6
Part of a circle's circumference
7
Math using letters for unknown values
8
Split into equal parts
纵向
2
Corner point of a polygon
3
Number that divides evenly into another
5
Line touching circle at one point
6
Reference line in a graph
9
Number less than zero