Across
1
Amount of space an object occupies
3
Visual representation of data
5
Number greater than zero
6
Collection of distinct elements
7
System of ordered marks for measuring
11
Three-sided polygon
Down
2
Proven mathematical statement
4
Line crossing from corner to corner
5
Total distance around a shape
8
Space between two intersecting lines
9
U-shaped curve of a quadratic function
10
Single numeral from 0 to 9