If 1cm = 50km......then, in area terms, [1cm]^2 = [50km]^2
36pi = radius = 6 diameter = 12
64 pi = radius = 8 diameter = 16
Ratio of smaller circle's diameter to larger circle's diameter = 12/16 = 3/4
Circumference ratio is exactly the same, too........3/4
To see why.....circumference of smaller circle = pi*12 .....circumference of larger circle = pi*16
So..... pi*12 / pi*16 = 12/16 = 3/4
you stpid
