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__Tutorial #43__ Volume of a Cylinder:

[|Example of a Cylinder.]

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The equation to find the area of a cylinder is πr^2h. The "r" stands for the radius of the cylinder and the "h" stands for the height. So, look at the picture above. This will be the guide line for this explanation. In this example the radius equals 9 and the height is 12. First let's start with πr^2 which would equal 81π. Then if you multiply that by 12 (that's the height) you get 972π. If you multiply by π (about 3.142) then the final answer would be about 3054. It's as simple as that.

[|Additional Problems] [|Further Detail] [|Real-Life Examples]


 * Reflection:**

1.) The original score I received from Mrs. Jennings was a 76.95% (C) and a 13, 18, 21, 16, and 19 from the university students. I was disappointed by the grade I got but I suppose that must be accurate since it came from so many people. But, I felt that the comments they left were helpful. I change a lot of things: I made the explanation relate to the picture, I had all working links, and I made the explanation easier to follow. 2.) I changed the topic because I felt I knew more about the volume of prisms more the scale factors. I also changed things to what was suggested because it would be easier for the user. Making the explanation match with the picture would cause less confusion to the person looking at this site. 3.) Next year's student should know that this project is best when done over a period of a few days so that they can look back to it with a fresh mind and catch little details that could improve their grade. Also, having the same information in your podcast as in your picture is very helpful to you and the user. When working on this project keep in mind that keeping your page neat and organized is a big help so that you know where everything is. 4.) While doing this project I learned how to make a website of my own. I had always wanted to but never knew how. Doing this has shown me the basic steps on making a website of my own. I also found a lot of information on the internet about many subjects. I could really see the internet as a major education tool in the near future because there's so much information out there.

Scale Factors involving Area:



[|Further Detail] [|Additional Problems] [|Real-Life Problems]

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If the Scale Factor equals 3:5 or 3/5 then "K" is equal to 3/5. To find the area you to ^2 the Scale Factor. So, that means that K^2 is equal to 9/25, because 3^2 = 9 and 5^2 = 25. So the area of the shape will be equal to 9/25.