The ratio of the volume of 2 spheres is 27:8 find the ratio of their surface area

2
by muditrck

2016-03-10T12:14:28+05:30
Assume that radius of first sphere is R
and radius of second sphere is r

acc to question

volume of first sphere              4/3
---------------------------------  =    -------------------------------------------
volume of second sphere        4/3

27/8=/

R/r=3/2

now

surface area of first sphere                 4
-----------------------------------             =  ------------------------------------------
surface area of second sphere           4

surface area of first sphere
-----------------------------------             =  -----------------------
surface area of second sphere

surface area of first sphere
-----------------------------------             =  -----------------------
surface area of second sphere

surface area of first sphere                 9
-----------------------------------             =  ----------
surface area of second sphere           4

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2016-03-13T01:06:33+05:30