Answer:
Step-by-step explanation:
h
Answer:
Step 5
Step-by-step explanation:
The mistake is in step 5.
The previous step was

The order operations, PEDMAS, must be applied:
We have Addition and Division here,
Using PEDMAS, we must divide first to get:

We can now add to get:

Therefore the mistake occurred at step 5
Answer:

Step-by-step explanation:
Given


<em>See attachment</em>
<em></em>
Required
Determine the total surface area, T
T is calculated using:

Substitute values for r and h


Remove bracket


Take 
So, we have:


--- approximated.
<em>Hence, the surface area is 1300 square inch</em>