The surface area of a cylinder is
[tex]A=2\pi rh+2\pi r^2[/tex]
Where
r = radius of the base
h = height
Therefore
[tex]\begin{gathered} A=2\pi\cdot4\cdot7+2\pi\cdot(4)^2 \\ \\ A=56\pi+32\pi \\ \\ A=88\pi \\ \\ \end{gathered}[/tex]
The unit here will be squared centimeters
[tex]A=88\pi\text{ cm}^2[/tex]
