Across
1
Space between two intersecting lines
4
Repeated addition
5
Parts per hundred
6
Divisible by two
8
Line touching circle at one point
9
Line crossing from corner to corner
Down
2
Three-sided polygon
3
Symbol representing unknown value
4
Middle value in an ordered dataset
5
Lines that never intersect
7
Steepness of a line
10
Round shape with all points equidistant
11
Reference line in a graph
12
Number that divides evenly into another