Answers

2016-03-06T19:53:22+05:30
Given that
surface area = 1018 2/7
                       = 7128/7
4πr² = 7128/7
r² = 7128×7/7×22×4
r² = 81
r = 9m

volume of the sphere = 4/3πr³
= 4/3×22/7×9×9×9
= 3054.8571 sq.m³.

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  • Brainly User
2016-03-06T20:57:52+05:30
Surface area of sphere = 4*pi*r^2
1018 2/7 = 4*22/7*r^2
7128/7    = 4*22/7*r^2
         r^2 = 7128/7*22/7*1/4
         r^2 = 1782/22
         r^2 = 81
         r     = root 81
         r     = 9m

Volume of sphere = 4/3*pi*r^3
                             = 4/3*22/7*81*9
                             = 4*22/7*81*3
                             = 21384/7
                             = 3053.63 cubic meter

Therefore, the volume of the sphere is 3053.63 m^3.
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Comment has been deleted
but the answer is 305.4285