Across
1
Single numeral from 0 to 9
3
Lines that never intersect
5
Distance from center to edge of circle
6
Three-sided polygon
7
Divisible by two
10
Amount of space an object occupies
11
Difference between highest and lowest values
Down
2
Visual representation of data
4
Number less than zero
6
Line touching circle at one point
8
Steepness of a line
9
Line segment connecting two circle points