# What is the ratio V2/V1 of the volumes?

I need help with this question: Sphere 1 has surface area A1 and volume V1, and Sphere 2 has surface area A2 and volume V2. If the radius of Sphere 2 is six times the radius of Sphere 1, what is the ration A2/A1 of the areas?

Part two: What is the ratio V2/V1 of the volumes?

$$\begin{array}{l} A = 4\pi R^2 \\ V = \frac{4}{3}\pi R^3 \\ \end{array}$$