Across
1
Part of a whole number
5
Number greater than zero
8
Value that does not change
9
Line touching circle at one point
Down
2
Lines that never intersect
3
Exact correspondence on both sides
4
Number that divides evenly into another
5
Result of multiplication
6
The number representing nothing
7
Corner point of a polygon
10
Math using letters for unknown values
11
Closed shape with straight sides