Across
1
Middle value in an ordered dataset
5
Exact correspondence on both sides
6
Line crossing from corner to corner
7
Amount of space an object occupies
8
Longest side of a right triangle
Down
2
Single numeral from 0 to 9
3
Rectangle with four equal sides
4
Divisible by two
9
Difference between highest and lowest values
10
Rectangular array of numbers
11
Total distance around a shape