Across
1
Collection of distinct elements
2
Number greater than zero
3
Space between two intersecting lines
4
Reference line in a graph
7
Number that divides evenly into another
8
Rectangle with four equal sides
9
Mathematical statement of equality
10
Distance from center to edge of circle
Down
1
Steepness of a line
2
Number divisible only by 1 and itself
5
System of ordered marks for measuring
6
Part of a line with two endpoints
11
Divisible by two
12
Result of multiplication
13
Number less than zero