Across
1
Line touching circle at one point
6
Corner point of a polygon
7
Part of a circle's circumference
8
Difference between highest and lowest values
11
Exact correspondence on both sides
Down
2
Space between two intersecting lines
3
Middle value in an ordered dataset
4
Line crossing from corner to corner
5
Collection of distinct elements
9
Number that divides evenly into another
10
Parts per hundred