Across
1
Line touching circle at one point
5
Comparison of two quantities
6
Corner point of a polygon
7
Divisible by two
9
U-shaped curve of a quadratic function
11
Number divisible only by 1 and itself
Down
2
Sum divided by count
3
Line crossing from corner to corner
4
Three-sided polygon
8
Single numeral from 0 to 9
10
Visual representation of data