The surface area of a sphere is 4pir^2. So we have to square our scale factor and the larger sphere will have a surface area that is 9 times the smaller.
16 x 9 =144 sq ft
Vincent M.
asked • 04/07/19The question i have to solve is: Two spheres have a scale factor ratio of 1:3. The smaller sphere has a surface area of 16ft squared. What is the surface area of the larger sphere?
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