Across
1
Distance from center to edge of circle
4
Difference between highest and lowest values
5
Mathematical statement of equality
6
Line touching circle at one point
10
Middle value in an ordered dataset
Down
2
Collection of distinct elements
3
Space between two intersecting lines
7
Number divisible only by 1 and itself
8
Parts per hundred
9
Lines that never intersect
11
Comparison of two quantities