Across
1
Round shape with all points equidistant
3
Lines that never intersect
4
Reference line in a graph
5
Number less than zero
11
Result of raising a number to an exponent
Down
1
Line segment connecting two circle points
2
Sum divided by count
3
Number greater than zero
6
Part of a whole number
7
Closed shape with straight sides
8
Line crossing from corner to corner
9
Proven mathematical statement
10
Three-sided polygon