Across
1
Part of a line with two endpoints
3
Result of raising a number to an exponent
4
Value that does not change
7
Number divisible only by 1 and itself
11
Longest side of a right triangle
12
Number less than zero
Down
2
Lines that never intersect
3
Result of multiplication
5
Corner point of a polygon
6
Exact correspondence on both sides
8
Sum divided by count
9
Split into equal parts
10
Middle value in an ordered dataset