横向
1
Closed shape with straight sides
4
Symbol representing unknown value
6
Comparison of two quantities
7
Rectangular array of numbers
8
Parts per hundred
11
Rectangle with four equal sides
12
U-shaped curve of a quadratic function
纵向
2
Longest side of a right triangle
3
Amount of space an object occupies
5
Divisible by two
9
Space between two intersecting lines
10
Line touching circle at one point