Across
1
Distance from center to edge of circle
4
Divisible by two
5
Value that does not change
6
Space between two intersecting lines
7
Lines that never intersect
11
Rectangular array of numbers
13
Result of raising a number to an exponent
14
Exact correspondence on both sides
Down
2
Part of a whole number
3
Mathematical rule or equation
8
The number representing nothing
9
Visual representation of data
10
Proven mathematical statement
12
Steepness of a line