The ratio of the lengths of the radii of two spheres is 5 : 8. What is the ratio of the surface area of the smaller sphere to the surface area of the larger sphere?

The ratio of the surface area of the smaller sphere to the surface area of the larger sphere is 25:64.

Step-by-step explanation:

The surface area of square is given by formula as follows :

r is radius of sphere

The ratio of the lengths of the radii of two spheres is 5 : 8. The ratio of the surface area of the smaller sphere to the surface area of the larger sphere is :

Here,

So, the ratio of the surface area of the smaller sphere to the surface area of the larger sphere is 25:64.

step-by-step explanation:

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