Across
1
Repeated addition
3
Part of a circle's circumference
4
Steepness of a line
5
Result of multiplication
6
Reference line in a graph
7
Power to which a number is raised
11
Line touching circle at one point
12
Sum divided by count
Down
1
Middle value in an ordered dataset
2
Line crossing from corner to corner
3
Space between two intersecting lines
8
Number that divides evenly into another
9
Rectangular array of numbers
10
Three-sided polygon