Across
1
Divisible by two
3
Number that divides evenly into another
4
Collection of distinct elements
5
Mathematical rule or equation
6
Reference line in a graph
7
Value that does not change
8
Three-sided polygon
11
Number divisible only by 1 and itself
Down
2
Total distance around a shape
3
Part of a whole number
9
Corner point of a polygon
10
Result of raising a number to an exponent
11
Result of multiplication
12
Line segment connecting two circle points