#2
The formula for the surface area of a cylinder is:
[tex]A=2\pi r^2+2\pi rh[/tex]
Where:
r is the radius of the cylinder
h is the height of the cylinder
Using this formula and the data given,
[tex]\begin{gathered} A=2(3.14)(6^2)+2(3.14)(6)(15) \\ \rightarrow A=791.3 \end{gathered}[/tex]
Answer: Option 4
#3
For this pyramid we have 5 faces:
• Four triangles of base 8" and height 14"
,
• A square of side 8"
Therefore, the surface are would be:
[tex]\begin{gathered} A=(8\times8)+4\times(\frac{8\times14}{2}) \\ \rightarrow A=288 \end{gathered}[/tex]
Answer: Option 2
