Across
1
Result of multiplication
2
Rectangle with four equal sides
4
U-shaped curve of a quadratic function
6
The number representing nothing
7
Power to which a number is raised
9
Lines that never intersect
Down
2
Exact correspondence on both sides
3
Round shape with all points equidistant
5
Visual representation of data
8
Part of a line with two endpoints
10
Mathematical statement of equality
11
Middle value in an ordered dataset