Across
1
Middle value in an ordered dataset
4
Reference line in a graph
5
Proven mathematical statement
6
Number that divides evenly into another
10
Number divisible only by 1 and itself
11
Space between two intersecting lines
Down
2
Result of addition
3
Line touching circle at one point
7
Rectangle with four equal sides
8
Part of a circle's circumference
9
Number less than zero