- #1
What Are Some Suggestions for Checking an Answer and Identifying Mistakes?
- Thread starter kingboy
- Start date
In summary, The conversation is about finding the total surface area of a cylinder and discussing the correct method to do so. There is a suggestion to include the area of the top surface, but it is pointed out that this is not necessary as the top is open and not a flat circle. The conversation concludes with the mistake being identified and corrected.
- #2
tiny-tim
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hi kingboy! 
you've included the area of the top surface of the cylinder
you've included the area of the top surface of the cylinder
- #3
kingboy
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tiny-tim said:hi kingboy!
you've included the area of the top surface of the cylinder
so that mean the total surface area need to -[tex]\pi[/tex]r^2(top circle)?
how about the method ? is that correct? because late need to dy/dx...
can someone help to correct or circle the wrong part?pls ...
Last edited:
- #4
tiny-tim
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hi kingboy!
kingboy said:how about the method ? is that correct?i don't understand how you got equation circle-2
you need to take the equations for A and V and to prove that A = 2V/r + 5πr2/3
- #5
chiro
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kingboy said:
Like tiny-tim pointed out you are including an extra circle. Think of your cylinder as having the top opened. Instead of that circle, you have your hemisphere on the top and not a flat circle.
- #6
kingboy
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o i know where i make mistake thank for helping ...
What does "Pls help me to check the answer" mean?
The phrase "Pls help me to check the answer" typically means the person is asking for assistance in verifying or confirming the correctness of their answer to a question or problem.
Why do people ask for help in checking their answers?
People may ask for help in checking their answers because they want to ensure they have the correct solution or understanding. It can also be a way to double check their work and catch any mistakes they may have made.
Is it important to check your answers?
Yes, it is important to check your answers because it helps to ensure accuracy and understanding. It also allows for the identification and correction of any mistakes or misunderstandings.
How can I effectively check my answers?
There are several ways to effectively check your answers. One method is to compare your solution to a set of answer keys or sample solutions. Another way is to rework the problem or question using a different approach to see if you arrive at the same answer. Seeking feedback or assistance from others can also be helpful in checking your answers.
Can I trust someone else to check my answers for me?
It is important to choose someone you trust and who has knowledge and expertise in the subject area to check your answers. Ultimately, the responsibility of ensuring the correctness of your answers rests with you, so it is important to also double check any feedback or corrections given by others.
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