Across
1
Line crossing from corner to corner
4
Corner point of a polygon
5
Value that does not change
6
Number greater than zero
Down
2
Power to which a number is raised
3
Steepness of a line
7
Number less than zero
8
Line touching circle at one point
9
Number that divides evenly into another
10
Math using letters for unknown values
11
Exact correspondence on both sides
12
Symbol representing unknown value