Question

Sphere A has radius 6 inches and sphere B has diameter 14 inches. Find the ratio of the surface area of A to the surface area of
b.

Answer 1

Answer: 9 : 49


Explanation:

$\textnormal {Ratio of surface area} = \cfrac{6^2}{14^2} = \cfrac{9}{49}$



The Wise Orange knows that (L1/L2)² will give the ratio for the area and (L1/L2)³ will give the ratio for the volume.