12. Here are the x, y coordinates of the centers of six departments 1, 2, 3, 4, 5, and 6. (x1, y1) = (26, 40) (x2, y2) = (0, 23) (x3, y3) = (26, 12) (x4, y4) = (0, 0) (x5, y5) = (15, 20) (x6, y6) = (41, 0) Using a spreadsheet software package, determine each of the following distances between the centers of each pair of departments: (a) Euclidean (b) Squared Euclidean (c) Rectilinear (d) Tchebychev