横向
1
The number representing nothing
4
Result of raising a number to an exponent
5
Result of addition
6
Total distance around a shape
10
Longest side of a right triangle
纵向
2
Split into equal parts
3
Amount of space an object occupies
6
Number greater than zero
7
Distance from center to edge of circle
8
Round shape with all points equidistant
9
Three-sided polygon