横向
1
Longest side of a right triangle
6
Three-sided polygon
7
Total distance around a shape
8
Math using letters for unknown values
10
Amount of space an object occupies
纵向
2
Line crossing from corner to corner
3
Number with digits after a point
4
Split into equal parts
5
Collection of distinct elements
9
Visual representation of data
11
Number less than zero
12
Lines that never intersect
13
Result of raising a number to an exponent
14
Space between two intersecting lines