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How does the volume of an oblique cylinder change if the radius is reduced to 2/9 of its original size and the height is quadrupled?

A. V=2/81pir^2h
B. V=16/81pir^2h
C. V=4/9pir^2h
D. V=16/9pir^2h

Respuesta :

calculista
we know that
[the volume of an oblique cylinder]=pi*r²*h
if the radius is reduced to 2/9 of its original size and the height is quadrupled
then
[the new volume of an oblique cylinder]=pi*[(2/9)*r]²*[4*h]---> (16/81)*pi*r²*h

the answer is
the option B. V=16/81pir^2h

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