The formula of a midpoint between E and F:

We have the points
and
. Substitute:

Answer: 
Answer:
Step-by-step explanation:
Your answer
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Answer:

Step-by-step explanation:
We are given that
Radius of end of a log, r= 9 in
Error,
in
We have to find the error in computing the area of the end of the log by using differential.
Area of end of the log, A=


Now,
Approximate error in area

Using the values


Hence, the possible propagated error in computing the area of the end of the log