Across
1
Three-sided polygon
4
Result of addition
5
Number that divides evenly into another
6
Single numeral from 0 to 9
7
Amount of space an object occupies
11
Distance from center to edge of circle
12
Reference line in a graph
13
Math using letters for unknown values
14
Result of raising a number to an exponent
Down
2
Line crossing from corner to corner
3
Number greater than zero
4
Part of a line with two endpoints
8
The number representing nothing
9
Lines that never intersect
10
Power to which a number is raised