Respuesta :

It is given that the radius is 5 and height is 4.

To determine the surface area of cylinder

[tex]S=2\pi rh+2(\pi)r^2^{}[/tex][tex]S=2\pi\times5\times4+2\pi\times5\times5=40\pi+50\pi=90\pi[/tex]

Hence the correct option is b.

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