Question 43

Curved surface area of a cylinder of radius h and height r is ___

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Solution

$2 π h r$ or $2 π r h$
We know that the curved surface area of a cylinder of radius h and height r
$= 2 π \times R a d i u s \times H e i g h t = 2 π \times h \times r = 2 π h r = 2 π r h$

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Curved surface area of a cylinder of radius r and height h is:

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If the height of a cylinder becomes $\frac{1}{4}$ of the original height and the radius is doubled, then which of the following will be true ?
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Surface Area of a Cylinder

Standard VIII Mathematics

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Question 43 Curved surface area of a cylinder of radius h and height r is ___

2πhr or 2πrh We know that the curved surface area of a cylinder of radius h and height r =2π×Radius×Height=2π×h×r=2πhr=2πrh

Question 43

Curved surface area of a cylinder of radius h and height r is ___

$2 π h r$ or $2 π r h$
We know that the curved surface area of a cylinder of radius h and height r
$= 2 π \times R a d i u s \times H e i g h t = 2 π \times h \times r = 2 π h r = 2 π r h$