Across
1
Symbol representing unknown value
5
Longest side of a right triangle
6
Reference line in a graph
9
Mathematical statement of equality
10
Single numeral from 0 to 9
11
Divisible by two
Down
2
Value that does not change
3
Comparison of two quantities
4
Corner point of a polygon
7
Result of raising a number to an exponent
8
Proven mathematical statement
12
Space between two intersecting lines