Across
1
Amount of space an object occupies
5
Distance from center to edge of circle
7
Number greater than zero
9
Space between two intersecting lines
Down
2
Rectangle with four equal sides
3
Number with digits after a point
4
Steepness of a line
6
Collection of distinct elements
8
Total distance around a shape
10
Part of a line with two endpoints
11
Rectangular array of numbers