Across
1
Space between two intersecting lines
3
Rectangle with four equal sides
4
Result of addition
5
Round shape with all points equidistant
6
Corner point of a polygon
8
Number with digits after a point
9
Middle value in an ordered dataset
10
Value that does not change
11
Comparison of two quantities
Down
1
Math using letters for unknown values
2
Proven mathematical statement
7
Parts per hundred
12
Power to which a number is raised