For the above plot of the two sheeted hyperboloid (x/a)^2 - (y/b)^2 - (z/c)^2 = 1, find the parameters a, b and c, each of which is a positive integer between 1 and 6 inclusive. Three points on the surface are ( 12, 4, 10 ), ( 6, 2, 2.5 ) and ( 8, sqrt(12), 0 ). Ignore the computer noise connecting the two sheets.