Across
1
Reference line in a graph
4
Mathematical rule or equation
5
Longest side of a right triangle
9
Part of a whole number
12
Result of raising a number to an exponent
13
Number that divides evenly into another
Down
2
Collection of distinct elements
3
Corner point of a polygon
6
System of ordered marks for measuring
7
Exact correspondence on both sides
8
Three-sided polygon
10
Mathematical statement of equality
11
Result of multiplication