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The curved surface area of a right circular cylinder of height 14 cm is 88 cm^2 . Find the diameter of the base of the cylinder .

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Solution : Let $r$ be the radius and $h$ be the height of the cylinder . Then ,

$2pi rh= 88$ and $h =14$

$Rightarrow$ $2 imes frac227 imes r imes 14 = 88$

$Rightarrow$ $88r= 88$

$Rightarrow$ $r=1$

$herefore$ diameter of the base $= 2r=2 cm$

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Deependra Verma

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