Across
1
U-shaped curve of a quadratic function
3
Split into equal parts
7
Comparison of two quantities
9
Middle value in an ordered dataset
10
Difference between highest and lowest values
Down
2
Distance from center to edge of circle
4
Rectangular array of numbers
5
Math using letters for unknown values
6
Proven mathematical statement
8
Exact correspondence on both sides
11
Longest side of a right triangle