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Objective type Questions and Answers
The volume generated by rotating the triangle with vertices at $(0,0),(3,0)$ and $(3,3) $ about $x$-axis is
\[\begin{array}{1 1}(1)18\pi&(2)2\pi\\(3)36\pi&(4)9\pi\end{array}\]
tnstate
class12
bookproblem
p236
objective
q75
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oct-2006
oct-2007
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asked
May 22, 2013
by
poojasapani_1
retagged
May 21, 2014
by
meena.p
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1 Answer
Required volume = Volume of the cone with base radius =3 ad height =3
$\qquad= \large\frac{1}{3} $$ \pi \times 3^2 \times 3 =9 \pi$
Hence 4 is the correct answer.
answered
May 21, 2014
by
meena.p
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