横向
1
U-shaped curve of a quadratic function
3
Number divisible only by 1 and itself
5
Steepness of a line
6
Longest side of a right triangle
9
Mathematical statement of equality
10
Three-sided polygon
纵向
1
Parts per hundred
2
Total distance around a shape
4
Lines that never intersect
5
Rectangle with four equal sides
7
Value that does not change
8
The number representing nothing