Math, asked by meeragrouppaitp2t7kk, 1 year ago

the volume of a cylinder is 448 Pi centimetre cube and its height is 7 cm find the curved surface area and total surface area of a cylinder

mawbleiwelldone: sorry I make a mistake that answers due to the mistake of formula of volume of cylinder

Answers

Answered by Dhiman011

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Answered by mawbleiwelldone

given,
height h=7cm
volume V=448 pi cm^3
let r be the radius of cylinder
pi r^2 h=488pi
r^2=448x/7
r^2=64
r=root64
r =8cm
therfore total surface area of cylinder TSA=2pir(r+h)
TSA=2x3.14x8(8+7)
TSA=753.6sq.cm
and CSA=2pirh
CSA=2x3.14x8x7
CSA=351.68sq.cm

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