Across
1
Power to which a number is raised
4
Symbol representing unknown value
5
Reference line in a graph
10
Part of a whole number
11
Middle value in an ordered dataset
Down
2
Space between two intersecting lines
3
Rectangle with four equal sides
6
Total distance around a shape
7
Parts per hundred
8
Distance from center to edge of circle
9
Number less than zero
12
Value that does not change
13
Line crossing from corner to corner