Across
1
Steepness of a line
4
Part of a circle's circumference
5
Sum divided by count
8
Divisible by two
9
Collection of distinct elements
10
Difference between highest and lowest values
11
Power to which a number is raised
12
Result of raising a number to an exponent
Down
2
Corner point of a polygon
3
Lines that never intersect
6
Result of multiplication
7
Number greater than zero
13
Space between two intersecting lines