Across
1
Divisible by two
4
Number greater than zero
6
Split into equal parts
7
Space between two intersecting lines
10
Line segment connecting two circle points
Down
2
Three-sided polygon
3
Difference between highest and lowest values
4
Total distance around a shape
5
The number representing nothing
6
Line crossing from corner to corner
8
Part of a line with two endpoints
9
Math using letters for unknown values