Across
1
Number with digits after a point
2
Reference line in a graph
3
Result of raising a number to an exponent
6
Proven mathematical statement
7
Part of a circle's circumference
8
Closed shape with straight sides
9
Distance from center to edge of circle
Down
2
Sum divided by count
4
Exact correspondence on both sides
5
Value that does not change
10
Rectangle with four equal sides
11
Power to which a number is raised