Across
1
Round shape with all points equidistant
5
Symbol representing unknown value
6
Space between two intersecting lines
7
Result of raising a number to an exponent
8
Rectangular array of numbers
11
Number that divides evenly into another
Down
2
Part of a line with two endpoints
3
Part of a circle's circumference
4
Sum divided by count
9
Reference line in a graph
10
Visual representation of data