Respuesta :

276.46 is the surface area of the cylinder 
[tex]\bf \textit{total surface area of a cylinder}\\\\ S=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\ -----\\ r=4\\ h=7 \end{cases}\implies S=2\pi (4)(7+4) \\\\\\ S=8\pi (11)\implies S=88\pi [/tex]