Across
1
Proven mathematical statement
2
Closed shape with straight sides
4
Value that does not change
8
Symbol representing unknown value
10
Power to which a number is raised
Down
2
Number greater than zero
3
Distance from center to edge of circle
5
Middle value in an ordered dataset
6
Mathematical rule or equation
7
Line touching circle at one point
9
Sum divided by count
11
Lines that never intersect
12
Repeated addition
13
Mathematical statement of equality