Across
1
Corner point of a polygon
4
Line crossing from corner to corner
5
Line segment connecting two circle points
7
Number greater than zero
8
Collection of distinct elements
9
Difference between highest and lowest values
Down
2
Comparison of two quantities
3
Number divisible only by 1 and itself
6
Number that divides evenly into another
7
Lines that never intersect
10
Number with digits after a point
11
Line touching circle at one point