横向
1
Divisible by two
4
Reference line in a graph
5
Symbol representing unknown value
8
Total distance around a shape
9
Amount of space an object occupies
10
Result of multiplication
11
Steepness of a line
纵向
2
Rectangle with four equal sides
3
Longest side of a right triangle
6
Line touching circle at one point
7
Single numeral from 0 to 9
12
Space between two intersecting lines