Avolume of a sphere is 792\7cm cube find its surface area

The answer is 113.14 . The detailed answer is given below:

Step-by-step explanation:

volume of sphere =                       ∴ where radius = r

                              =

now, we find r.

=

⇒ = 792/7 x 3/4                             ( bring 3/4 to RHS )

⇒ = 594/7 x 7/22                         ( bring to RHS )

⇒ = 27

⇒r =

⇒r = 3                                                                                                        _(1)

surface area of sphere =

                                       = 4 x 22/7 x                    ( from _(1) )

                                       = 113.14

c is the correct answer

step-by-step explanation:

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