height of right circular cylinder is twice of its radius then the volume of the cylinder would be greater by 539 cubic dcm ...find the height of the cylinder
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Answer:
Correct option is
A
4m
Let radius of base be
′
r
′
m. Then
3(πr
2
+πr
2
)=2×2πrh
⇒6πr
2
=4πrh
⇒r=
6
4×6
=4m
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