Across
1
Line segment connecting two circle points
3
U-shaped curve of a quadratic function
4
Collection of distinct elements
7
Power to which a number is raised
8
Space between two intersecting lines
9
Number that divides evenly into another
10
Sum divided by count
Down
1
Value that does not change
2
Rectangular array of numbers
4
Rectangle with four equal sides
5
Repeated addition
6
Longest side of a right triangle
11
Steepness of a line