Across
1
Part of a line with two endpoints
5
Sum divided by count
6
Exact correspondence on both sides
7
Line crossing from corner to corner
8
Total distance around a shape
13
Value that does not change
Down
2
Result of multiplication
3
Proven mathematical statement
4
Rectangle with four equal sides
6
Result of addition
9
Number that divides evenly into another
10
Difference between highest and lowest values
11
Visual representation of data
12
Number greater than zero
14
Steepness of a line