Across
1
Sum divided by count
5
Distance from center to edge of circle
8
Three-sided polygon
10
Result of raising a number to an exponent
11
Symbol representing unknown value
13
Lines that never intersect
14
Part of a circle's circumference
Down
2
Part of a whole number
3
Value that does not change
4
Round shape with all points equidistant
6
Mathematical rule or equation
7
Middle value in an ordered dataset
9
Single numeral from 0 to 9
12
Total distance around a shape