Across
1
Sum divided by count
5
Repeated addition
6
Part of a line with two endpoints
7
Line touching circle at one point
8
Exact correspondence on both sides
Down
2
Distance from center to edge of circle
3
Number divisible only by 1 and itself
4
Total distance around a shape
5
Rectangular array of numbers
9
Three-sided polygon
10
Number less than zero
11
Steepness of a line