Across
1
Line crossing from corner to corner
4
Collection of distinct elements
6
Middle value in an ordered dataset
7
Lines that never intersect
8
Difference between highest and lowest values
10
System of ordered marks for measuring
11
Reference line in a graph
Down
2
Number less than zero
3
Part of a line with two endpoints
5
Power to which a number is raised
8
Distance from center to edge of circle
9
Corner point of a polygon
12
Part of a circle's circumference