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The height and radius of the base of a r...

The height and radius of the base of a right circular cylinder is 'r'. Find its totalsurface area.

Text Solution

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Here, height = radius = r cm
`therefore` Total surface area of cylinder `=2pi r(h+r)`
`=2pi r(r+r)`
`=4pi r^(2) cm^(2)`
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Knowledge Check

  • The radius of the base of a right cylinder is 14m and its height is 21m. Its total surface area is :

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    588` cm^(2)`
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