Across
1
Longest side of a right triangle
6
Lines that never intersect
9
Result of addition
10
Line touching circle at one point
11
Distance from center to edge of circle
12
Reference line in a graph
13
Total distance around a shape
Down
2
Rectangular array of numbers
3
Parts per hundred
4
The number representing nothing
5
Divisible by two
7
Symbol representing unknown value
8
Part of a whole number
14
Visual representation of data