Across
1
Reference line in a graph
3
Power to which a number is raised
4
Exact correspondence on both sides
6
Repeated addition
7
Part of a circle's circumference
10
Line crossing from corner to corner
11
Visual representation of data
Down
2
Number greater than zero
5
Number that divides evenly into another
8
Line touching circle at one point
9
Collection of distinct elements
12
Closed shape with straight sides