Across
1
Longest side of a right triangle
5
Reference line in a graph
7
Middle value in an ordered dataset
8
Number that divides evenly into another
9
U-shaped curve of a quadratic function
10
Total distance around a shape
11
Proven mathematical statement
12
Steepness of a line
Down
2
Value that does not change
3
Lines that never intersect
4
Round shape with all points equidistant
6
Distance from center to edge of circle
9
Number divisible only by 1 and itself