Ratio of circumferences of two circles with radius r1 and r2 respectively
= \(\frac{2πr_1}{2πr_2}\) = \(\frac{2}3\)
= \(\frac{r_1}{r_2}\) = \(\frac{2}3\)
Ratio of area = \(\frac{πr_1^2}{πr_2^2}\) = \(\frac{r_1^2}{r_2^2}\) = \(\frac{2^2}{3^2}\) = \(\frac{4}{9}\) = 4:9
