Across
1
Part of a circle's circumference
4
Amount of space an object occupies
5
Comparison of two quantities
7
Power to which a number is raised
8
Line touching circle at one point
11
Number that divides evenly into another
Down
2
Line crossing from corner to corner
3
Parts per hundred
6
Rectangular array of numbers
9
Sum divided by count
10
The number representing nothing
12
Rectangle with four equal sides