Across
1
Closed shape with straight sides
3
Lines that never intersect
5
Rectangle with four equal sides
6
Result of addition
8
Rectangular array of numbers
10
Line touching circle at one point
11
Middle value in an ordered dataset
12
Symbol representing unknown value
13
Split into equal parts
Down
1
Number greater than zero
2
Space between two intersecting lines
4
Result of multiplication
7
Visual representation of data
9
Number less than zero