Across
1
Part of a circle's circumference
3
Visual representation of data
4
Rectangle with four equal sides
6
Part of a line with two endpoints
9
Single numeral from 0 to 9
10
Result of multiplication
11
Math using letters for unknown values
Down
2
Lines that never intersect
5
Line touching circle at one point
7
Value that does not change
8
Number that divides evenly into another