Question

find tsa of cylinder whose radius is 21 cm and height is 5 cm
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Answer 1

Given :

• Radius of Cylinder = 21cm
• Height of Cylinder = 5cm

To Find :

• Total Surface Area of Cylinder.

Solution :

$\longmapsto\tt{Radius=21cm}$

$\longmapsto\tt{Height=5cm}$

Using Formula :

$\longmapsto\tt\boxed{T.S.A\:of\:Cylinder=2\pi{r(r+h)}}$

Putting Values :

$\longmapsto\tt{2\times\dfrac{22}{\cancel{7}}\times{\cancel{21}}(21+5)}$

$\longmapsto\tt{2\times{22}\times{3}(26)}$

$\longmapsto\tt{132(26)}$

$\longmapsto\tt\bold{3432{cm}^{2}}$

So , The T.S.A of Cylinder is 3432cm²...

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• C.S.A of Cylinder = 2πrh
• T.S.A of Cylinder = 2πr(r+h)
• Volume of Cylinder = πr²h

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