Across
1
Exact correspondence on both sides
3
Rectangle with four equal sides
4
Line touching circle at one point
5
Visual representation of data
7
Closed shape with straight sides
11
Longest side of a right triangle
Down
1
System of ordered marks for measuring
2
Comparison of two quantities
6
Corner point of a polygon
8
The number representing nothing
9
Number divisible only by 1 and itself
10
U-shaped curve of a quadratic function