John has two spheres. If the ratio of the radii of the two spheres is 2:3, find the ratio of their
(a) surface areas, (b) volumes.
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Answer:
a)4:9
b)8:27
Step-by-step explanation:
The ratio of surface area of the sphere is 4 : 9 and the ratio of volume of the sphere is 8 : 27
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