Across
1
Reference line in a graph
4
Result of multiplication
5
Line segment connecting two circle points
6
Result of raising a number to an exponent
8
Corner point of a polygon
10
Distance from center to edge of circle
11
Parts per hundred
12
Power to which a number is raised
Down
2
Comparison of two quantities
3
Split into equal parts
4
Closed shape with straight sides
7
The number representing nothing
9
Number less than zero