Question

The  curved  surface  area  of  a  cylinder  is  100πm². Length  of  the  cylinder  is  10 m . Find  its  Radius 

Answer 1

Answer:

${ Given\;that. }$

${ Circumference\;of\;cylinder=100πm².}$

${ Length\;of\;the\;cylinder=\;10m. }$

${ Radius=?. }$

${ As\;we\;know\;that\;value\;of\;π\;is\;3.14 }$

${ we\;also\;knew: }$

${ pie=c/d }$

${ C=pie×d }$

${ C=pie×2r }$

${ but\;here\;we\;need\;to\;find\;radius\;so }$

${ so,\;Radius=\;circumference\;/\;(π×2) }$

${ so\;here }$

${ Radius=\;100πm²\;/\;(3.14×2). }$

${ Radius=\;100πm²\;/3.18m.}$

${ Radius=\;98596\;/\;3.18m. }$

${ Radius=\;98596\;/\;318\;cm. }$

${ Radius=\;310.050314465 cm }$