Across
1
Closed shape with straight sides
4
Collection of distinct elements
6
Space between two intersecting lines
7
Proven mathematical statement
8
Result of multiplication
Down
1
Number divisible only by 1 and itself
2
Amount of space an object occupies
3
Number less than zero
5
Power to which a number is raised
9
The number representing nothing
10
Part of a circle's circumference