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CBSE Class 9 Answered

The ratio of curved surface area to total surface area of a cone is 1:3. If the tsa of the cone is 6428 sq cm, find the volume of the cone.
Asked by Devika A | 26 Feb, 2011, 12:00: AM
Expert Answer
dear student,
ATQ,
=1:3
solving we get,
2l=r...(i)
sustitute this value in TSA
=6428
and get the value of r
then find l using (i)
then use the formula
l= to find h.
then find volume by  using
volume =
Answered by | 26 Feb, 2011, 06:54: PM

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