Across
1
Result of raising a number to an exponent
3
Line crossing from corner to corner
4
Total distance around a shape
5
Longest side of a right triangle
6
Round shape with all points equidistant
7
Number divisible only by 1 and itself
9
Symbol representing unknown value
Down
1
Number greater than zero
2
Three-sided polygon
8
Value that does not change
10
Proven mathematical statement
11
Exact correspondence on both sides