Across
1
Total distance around a shape
4
Number greater than zero
6
Comparison of two quantities
7
Number less than zero
Down
1
Closed shape with straight sides
2
Rectangle with four equal sides
3
Line touching circle at one point
4
Result of raising a number to an exponent
5
Symbol representing unknown value
8
Round shape with all points equidistant
9
Value that does not change