Across
1
Lines that never intersect
4
Part of a whole number
7
Collection of distinct elements
8
Number less than zero
9
Proven mathematical statement
12
Visual representation of data
Down
2
Three-sided polygon
3
Reference line in a graph
5
Part of a circle's circumference
6
Total distance around a shape
10
Closed shape with straight sides
11
Result of raising a number to an exponent