Across
1
Corner point of a polygon
2
Part of a whole number
3
Part of a circle's circumference
8
Lines that never intersect
9
Symbol representing unknown value
10
Number divisible only by 1 and itself
Down
2
Number that divides evenly into another
4
Line segment connecting two circle points
5
Value that does not change
6
Total distance around a shape
7
Number with digits after a point