Across
1
Result of raising a number to an exponent
4
Round shape with all points equidistant
5
Power to which a number is raised
9
Divisible by two
10
Lines that never intersect
11
Math using letters for unknown values
12
Mathematical rule or equation
13
Symbol representing unknown value
Down
2
Line crossing from corner to corner
3
Mathematical statement of equality
6
Total distance around a shape
7
Corner point of a polygon
8
Value that does not change