Across
1
Parts per hundred
4
Line segment connecting two circle points
6
Difference between highest and lowest values
7
Split into equal parts
9
Value that does not change
11
Space between two intersecting lines
Down
2
Number that divides evenly into another
3
Round shape with all points equidistant
5
Repeated addition
8
Three-sided polygon
10
Result of raising a number to an exponent