Across
1
Parts per hundred
5
Difference between highest and lowest values
6
Space between two intersecting lines
9
Closed shape with straight sides
11
Divisible by two
Down
2
Steepness of a line
3
Round shape with all points equidistant
4
Corner point of a polygon
7
Middle value in an ordered dataset
8
Value that does not change
10
Mathematical rule or equation