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Mathematics 7 Online
OpenStudy (abbie):

help?

OpenStudy (anonymous):

question?

OpenStudy (abbie):

OpenStudy (abbie):

@neer2890 can you please help me?

rishavraj (rishavraj):

u have given the volume..so just take out the value of its radius and after that the surface area..

OpenStudy (abhisar):

Vol = 4πr^3 and Surface area = 4πr^2

OpenStudy (abhisar):

calculate the value of r and then divide the volume with it

OpenStudy (abbie):

can u help me solve it so in order to find the radius I have to plug in the volume 1,476pi=4 r^3 ? is that correct?

rishavraj (rishavraj):

it is supposed to be (4/3)pi*r^3

OpenStudy (abhisar):

1476π= 4/3πr3

OpenStudy (abbie):

i got 1104=pi r^2

rishavraj (rishavraj):

u r wrong...

OpenStudy (abhisar):

r = 10.34

OpenStudy (abhisar):

put r in 4πr^2

rishavraj (rishavraj):

@abbie u gotta use few approximations...to get the exact answer

OpenStudy (abhisar):

answer is C

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