Across
1
Comparison of two quantities
2
Sum divided by count
3
Power to which a number is raised
5
Three-sided polygon
8
Split into equal parts
9
Round shape with all points equidistant
10
Part of a line with two endpoints
Down
1
Difference between highest and lowest values
2
Reference line in a graph
4
Line segment connecting two circle points
5
Line touching circle at one point
6
Rectangular array of numbers
7
Symbol representing unknown value