The difference in arc lengths is less than you'd think-- It's only about 20km further assuming Alaska is 1/3 of the world's circumference away from Australia. (1/3)*(2*pi*(r+10) - 2*pi*r) = (1/3)(20*pi) ~= 20
The difference in arc lengths is less than you'd think-- It's only about 20km further assuming Alaska is 1/3 of the world's circumference away from Australia. (1/3)*(2*pi*(r+10) - 2*pi*r) = (1/3)(20*pi) ~= 20