Across
1
Total distance around a shape
5
Middle value in an ordered dataset
6
Line segment connecting two circle points
7
Divisible by two
8
Lines that never intersect
9
Longest side of a right triangle
Down
1
Number greater than zero
2
Split into equal parts
3
Part of a circle's circumference
4
The number representing nothing
5
Rectangular array of numbers
7
Power to which a number is raised