Question

the ratio of the volumes of two spheresis it 8 ratio 7 in the ratio of their surface areas is

Answer 1

answeredthisLet 'r' be the radius of the smaller sphere andlet 'R' be the radius of the larger sphere.Ratio of their volumes = 8:27=> 4/3 pi(r3) : 4/3 pi(R3) = 8:27=> r3: R3= 8:27=> r/R = 2/3 ---[1]S.A(smaller sphere) : S.A(larger sphere) = = 4pi(r2) : 4pi(R2)= r2: R2= (2/3)2 [From [1] ]= 4/9Therefore, the ratio of their surface areas willbe 4:9 . I hope this answer is helpful to you

Answer 2

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