Question

find the surface area of cylinder whose radius is 3.5 cm , height is 14.9 cm​

Answer 1

Given :-

• radius of cylinder = 3.5 cm
• height of cylinder = 14.9 cm

To Find :-

• Surface area of the cylinder ?

Solution :-

we know that,

$\boxed{ \bold{surface \: area \: of \: cylinder = 2\pi r(r + h)}}$

$\bold{: \implies 2 \times \frac{22}{ \cancel7} \times \cancel{3.5}(3.5 + 14.9) } \\ \\ \bold{: \implies 44 \times 0.5 \times 18.4} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \bold{: \implies404.8 \: {m}^{2} } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

hence, surface area of the cylinder is 404.8 m²

Answer 2

Answer:

404.64

from your friendly buddy paras hope u got your answer