Respuesta :

25villanueva94

Answer:

226pi

Step-by-step explanation:

2 * pi * 7 *(7+12)

JoshEast

Answer:

The surface area of this cylinder. is 266π  cm²

Step-by-step explanation:

Surface Area of Cylinder (SA) = 2πrh+2πr²

       since r =  7cm  & h = 12 cm

Then SA  = 2 π (7)(12) + 2π(7²)

         SA  = 168π  +  98π

     ∴  SA  = 266π  cm²

           

                   

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