Across
1
Three-sided polygon
6
Exact correspondence on both sides
7
Proven mathematical statement
8
Distance from center to edge of circle
9
Result of raising a number to an exponent
10
Corner point of a polygon
11
The number representing nothing
12
Lines that never intersect
Down
2
Comparison of two quantities
3
Power to which a number is raised
4
Split into equal parts
5
Sum divided by count
13
Reference line in a graph
14
Number less than zero