Answer:
(a)
[tex]r = 7ft[/tex]
[tex]h = 5ft[/tex]
(b)
[tex]SA = 168\pi[/tex]
[tex]SA = 528.0[/tex]
Step-by-step explanation:
Given
See attachment for complete question
Solving (a) Label all parts
From the attachment, the known part of the cylinder are its radius and its height.
The values are:
[tex]r = 7ft[/tex]
[tex]h = 5ft[/tex]
Solving (b): The surface area
This is calculated as:
[tex]SA = 2\pi r(r + h)[/tex]
So, we have:
[tex]SA = 2\pi *7*(7 + 5)[/tex]
[tex]SA = 2\pi *7*12[/tex]
[tex]SA = 168\pi[/tex]
As a decimal, we have:
[tex]SA = 168 * \frac{22}{7}[/tex]
[tex]SA = 528.0[/tex]
