Across
1
Difference between highest and lowest values
3
Exact correspondence on both sides
4
Lines that never intersect
6
Math using letters for unknown values
10
Distance from center to edge of circle
11
Steepness of a line
12
Power to which a number is raised
13
Number that divides evenly into another
Down
2
Total distance around a shape
3
System of ordered marks for measuring
4
U-shaped curve of a quadratic function
5
Part of a line with two endpoints
7
Mathematical statement of equality
8
Parts per hundred
9
Corner point of a polygon