Across
1
Number greater than zero
4
Mathematical statement of equality
5
Proven mathematical statement
Down
1
Number divisible only by 1 and itself
2
Corner point of a polygon
3
Split into equal parts
6
The number representing nothing
7
Exact correspondence on both sides
8
Result of multiplication
9
Round shape with all points equidistant
10
Middle value in an ordered dataset
11
Total distance around a shape