Across
1
Number less than zero
2
Result of addition
6
Split into equal parts
7
Part of a circle's circumference
8
Number that divides evenly into another
11
Corner point of a polygon
Down
2
Exact correspondence on both sides
3
Symbol representing unknown value
4
Round shape with all points equidistant
5
Line touching circle at one point
6
Single numeral from 0 to 9
9
Difference between highest and lowest values
10
Line segment connecting two circle points