Across
1
U-shaped curve of a quadratic function
3
Total distance around a shape
6
Collection of distinct elements
7
Repeated addition
9
Distance from center to edge of circle
Down
1
Number greater than zero
2
Lines that never intersect
4
Line touching circle at one point
5
Amount of space an object occupies
8
Space between two intersecting lines
10
Number with digits after a point