Question

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If the radius of a cylinder is 4cm and height is 10cm, then the total surface area of a cylinder is:​

Answer 1

$\large\sf\underline{Given:}$

• Radius of a cylinder = 4cm

• Height of the cylinder = 10cm

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$\large\sf\underline{To\:find:}$

• Total surface area of the cylinder .

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$\large\sf\underline{Solution:}$

We know ,

$\small{\underline{\boxed{\mathrm\blue{Total\: surface\:area\:of\: cylinder=2πr(h+r)}}}}$

Let's substitute the given values in the formula :

$\sf\:Total\: surface\:area\:of\: cylinder=2πr(h+r)$

$\sf➞\:2×\frac{22}{7}×4(10+4)$

$\sf➞\:2×\frac{22}{7}×4×14$

$\sf➞\:\frac{44}{7}×4×14$

$\sf➞\:\frac{176}{7}×14$

$\sf➞\:\frac{2464}{7}$

${\sf{{\purple{➻\:Total\: surface\:area\:of\: cylinder=\:352\:cm^{2}}}}}$

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Answer 2

Answer:

total surface area of cylinder =352cm²