Across
1
Parts per hundred
3
Collection of distinct elements
5
Lines that never intersect
6
Difference between highest and lowest values
10
Value that does not change
Down
2
Steepness of a line
3
Exact correspondence on both sides
4
Proven mathematical statement
5
Closed shape with straight sides
7
Rectangular array of numbers
8
Line segment connecting two circle points
9
Line touching circle at one point
11
Corner point of a polygon