SOLUTION: A sphere has a volume of 972 cm3 . What is its surface area?

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Question 1173721: A sphere has a volume of 972 cm3
. What is its surface area?
Found 2 solutions by ikleyn, ewatrrr:
Answer by ikleyn(52786)   (Show Source): You can put this solution on YOUR website!
.

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By the way,  if the volume is    cm^3,

then the solution and the answer by @ewatrrr      are both   I N C O R R E C T.

The correct solution is below 


     = 


Canceling pi in both sides

     = 972

     =  = 729

    r =  = 9.


    Surface area =  =  =  =.    ANSWER.

The correct answer   is   .

Solved.


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Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 
Hi,
.
A sphere has a volume of 972π cm^3    
|Can just use the word pi for posting.  Note use of ^
What is its surface area?
Volume = 4/3 πr^3   
 r^3 = = 729
   r = 27cm
 Surface Area = 4πr^2   = 4π(27^2 ) = 2916π cm^2
Wish You the Best in your Studies.


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