Question 1019344
Let {{{r[2]}}} be the radius of the bigger circle, and {{{r[1]}}} be the radius of the smaller circle.
From the given, {{{r[2]/r[1] = 3/2 = 1.5}}}.

Hence, the ratio between the circumference of the two circles is {{{C[2]/C[1] = (2*pi*r[2])/(2*pi*r[1]) = r[2]/r[1] = 3/2 = 1.5}}}.

Also, the ratio between the area of the two circles is {{{A[2]/A[1] = (pi^2*r[2])/(pi^2*r[1]) = (r[2]/r[1])^2 = (3/2)^2 = 9/4 = 2.25}}}