Across
1
Parts per hundred
2
Part of a circle's circumference
5
Symbol representing unknown value
6
Mathematical rule or equation
7
Exact correspondence on both sides
8
Line touching circle at one point
13
Middle value in an ordered dataset
Down
2
Sum divided by count
3
Total distance around a shape
4
Mathematical statement of equality
9
Distance from center to edge of circle
10
Visual representation of data
11
Number greater than zero
12
Power to which a number is raised