Across
1
Parts per hundred
4
Symbol representing unknown value
5
Steepness of a line
6
Split into equal parts
9
Line touching circle at one point
Down
1
Result of raising a number to an exponent
2
Number that divides evenly into another
3
Middle value in an ordered dataset
7
Number greater than zero
8
Three-sided polygon
10
Space between two intersecting lines
11
Result of multiplication
12
Exact correspondence on both sides