Across
1
Result of multiplication
4
Symbol representing unknown value
5
Split into equal parts
6
Math using letters for unknown values
7
Closed shape with straight sides
10
Number that divides evenly into another
12
Proven mathematical statement
Down
2
Three-sided polygon
3
Amount of space an object occupies
8
Power to which a number is raised
9
Part of a circle's circumference
11
Number greater than zero