横向
1
System of ordered marks for measuring
4
Part of a line with two endpoints
5
Total distance around a shape
8
Power to which a number is raised
10
Proven mathematical statement
纵向
2
Number that divides evenly into another
3
Longest side of a right triangle
5
Number greater than zero
6
Math using letters for unknown values
7
Collection of distinct elements
9
Amount of space an object occupies
11
Corner point of a polygon
12
Rectangular array of numbers
13
Lines that never intersect