Across
1
Value that does not change
5
Difference between highest and lowest values
6
Line segment connecting two circle points
7
Space between two intersecting lines
8
Total distance around a shape
9
Three-sided polygon
10
Line crossing from corner to corner
11
Number divisible only by 1 and itself
Down
1
Round shape with all points equidistant
2
Math using letters for unknown values
3
Part of a line with two endpoints
4
Middle value in an ordered dataset
12
Mathematical rule or equation