[tex]\begin{gathered} Surface\text{ area of cylinder = 2}\pi r^2\text{ + 2}\pi rh \\ \text{given, }\pi\text{ =3.14, r = }\frac{7}{2}\text{ = 3.5in, h = 19in} \\ \text{therefore;} \\ \text{Surface area of cylinder = 2 }\times\text{ 3.14 }\times3.5^2\text{ + 2 }\times\text{ 3.14 }\times\text{ 3.5 }\times\text{ 19} \\ \text{Surface area of cylinder = 76.93 + 417.62} \\ \text{Surface area of cylinder = 494.55in}^2 \end{gathered}[/tex][tex]undefined[/tex]
