Across
1
Proven mathematical statement
5
Three-sided polygon
7
Parts per hundred
9
Mathematical rule or equation
11
Line segment connecting two circle points
12
Comparison of two quantities
Down
2
Number that divides evenly into another
3
Longest side of a right triangle
4
Part of a line with two endpoints
6
Sum divided by count
8
Result of multiplication
10
Difference between highest and lowest values