Math, asked by viji2811, 1 year ago

the volumes of two spheres are in the ratio64:27.find the ratio of their surface areas​

Answers

Answered by rohanbhilawe777
1

Step-by-step explanation:

ratio of surface area is 16:9

Attachments:
Answered by ShabdSwaroop
1

Answer: Ratio = 16:9

Step-by-step explanation:

volume of sphere = (4*22/7*r^3)/3

so, (88/7*r1^3)/3 * 3/(88/7*r2^3) = 64/27

     r1^3/r2^3= 64/27

     cube root both sides

     r1/r2 = 4/3

surface area of sphere = 88r^2/7

      88r1^2/7 * 7/88r2^2

       r1^2/r2^2

       4^2/3^2

        16/9

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