Across
1
Total distance around a shape
4
Collection of distinct elements
6
Result of multiplication
7
Steepness of a line
8
Number greater than zero
9
Part of a circle's circumference
Down
1
Result of raising a number to an exponent
2
Mathematical rule or equation
3
Single numeral from 0 to 9
4
Rectangle with four equal sides
5
Proven mathematical statement
8
Number divisible only by 1 and itself