Across
1
Symbol representing unknown value
4
Closed shape with straight sides
5
Mathematical statement of equality
7
Proven mathematical statement
8
The number representing nothing
10
Parts per hundred
Down
1
Corner point of a polygon
2
Visual representation of data
3
Space between two intersecting lines
4
U-shaped curve of a quadratic function
6
Power to which a number is raised
9
Total distance around a shape