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Surface area of a cylinder. (see attached image please)

Surface area of a cylinder. (see attached image please)-example-1

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Answer:


\large{ \tt{❃ \: EXPLANATION}} :

  • Firstly you need to remember the formula to find out surface area of a cylinder - Surface area of a cylinder = 2πr ( r + h ) where r is the radius of a circular face and h is the height of the cylinder.

  • We're provided : Diameter of cylinder = 12 which means radius ( r ) = 6 cm [ Radius is the half of diameter ] & Height ( h ) = 25 cm & we know pi ( π ) = 22/7.


\large{ \tt{❁ \: LET'S \: SOLVE}} :


\large{\boxed{ \tt{☄TOTAL \: SURFACE \: AREA \: OF\: CYLINDER= 2\pi \: r \: ( \: r + h)}}}

- Plug the values & then simplify !


\large{↦2 * (22)/(7) * 6(6 + 25) }


\large{↦2 * (22)/(7) * 6 * 31}


\boxed{\large{↦1169.14 \: \tt{ {cm}^(2) }}}

  • Hence , The surface area of given cylinder is 1169.14 cm²

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