Across
1
Collection of distinct elements
3
Round shape with all points equidistant
4
Part of a whole number
5
Lines that never intersect
7
Middle value in an ordered dataset
9
Line touching circle at one point
10
Divisible by two
11
Single numeral from 0 to 9
Down
2
Distance from center to edge of circle
4
Mathematical rule or equation
5
Number divisible only by 1 and itself
6
Mathematical statement of equality
8
Reference line in a graph