the ratio of radii of two spheres is 2:3 .find the ratio of their surface areas and volumes.
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Answer:
4:9 and 8:27
Step-by-step explanation:
R:r = 2:3
surface area of sphere is 4πr²
therefore ratio of surface area of spheres is R²:r²= 4 :9
ratio of volumes =R³ : r³ = 8:27
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