Across
1
Proven mathematical statement
5
Number with digits after a point
6
Value that does not change
7
Reference line in a graph
8
Middle value in an ordered dataset
9
Symbol representing unknown value
10
Result of multiplication
Down
2
Power to which a number is raised
3
Sum divided by count
4
Split into equal parts
11
Math using letters for unknown values
12
Longest side of a right triangle
13
Part of a circle's circumference
14
The number representing nothing