Across
1
Power to which a number is raised
3
Result of addition
6
Lines that never intersect
7
Number that divides evenly into another
8
Round shape with all points equidistant
9
Difference between highest and lowest values
13
Line touching circle at one point
Down
2
Math using letters for unknown values
3
Part of a line with two endpoints
4
Three-sided polygon
5
Visual representation of data
10
Number less than zero
11
Sum divided by count
12
The number representing nothing