Across
1
Line segment connecting two circle points
4
Rectangle with four equal sides
5
Round shape with all points equidistant
7
Result of addition
8
Value that does not change
Down
2
Middle value in an ordered dataset
3
Number with digits after a point
6
Number that divides evenly into another
9
Exact correspondence on both sides
10
Sum divided by count
11
Corner point of a polygon
12
Part of a line with two endpoints