Across
1
Part of a line with two endpoints
5
Value that does not change
6
Three-sided polygon
7
Mathematical rule or equation
8
Collection of distinct elements
12
Part of a circle's circumference
14
Repeated addition
Down
2
Difference between highest and lowest values
3
Total distance around a shape
4
Mathematical statement of equality
9
Exact correspondence on both sides
10
Line crossing from corner to corner
11
Result of multiplication
13
Visual representation of data