Across
1
Collection of distinct elements
3
Space between two intersecting lines
4
Number that divides evenly into another
8
System of ordered marks for measuring
9
Line crossing from corner to corner
10
Proven mathematical statement
12
Reference line in a graph
13
Number less than zero
14
Number divisible only by 1 and itself
Down
2
Mathematical statement of equality
5
Corner point of a polygon
6
Line touching circle at one point
7
Number with digits after a point
11
Result of addition