Across
1
Middle value in an ordered dataset
4
Part of a circle's circumference
5
Closed shape with straight sides
6
Mathematical statement of equality
7
Line touching circle at one point
11
Proven mathematical statement
Down
1
Repeated addition
2
Symbol representing unknown value
3
Difference between highest and lowest values
8
Result of raising a number to an exponent
9
Distance from center to edge of circle
10
Parts per hundred