Surface Area of a Cylinder
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Uploader Comments (BabelMath)
Top Comments
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youtube people are much better then my actual teachers
9 months ago 43
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i got my grade fom B to A from this
1 year ago 19
All Comments (63)
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1:41 how did u get 25 Pi x 5 x 2 is 31 and pi x 5 is 15..??
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I am the younger sister of the user this is my millionth try finding help for math,this helps a little bit but its still hard :( thanx for da help I get it a little more now!:D
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thnx for helping me with my homework
1 week ago 3
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@legocloneking ohh! wow thanks! xDD
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@myworldhasmusic he did the radius of the cylinder(5) and squared it because the formula pi r 2
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@BabelMath i know this video is like 2 years ago, but i have a question, on 3:28, how did u get 25? sorry im only 12 lol
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wat about the lenght?
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BabelMath, Sir, I am eternally grateful. This was an AMAZING demonstration explaining very clearly how to find the S.A. of a cylinder. If I have any more trouble with math, I'll be sure to check your channel. :)
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@TheJDCooper1997 I agree. v.v my teachers try to make everything sound extra confusing so we think they are smart and gain respect for them, when in reality I'd have so much respect for them if they actually taught me how to solve a problem without me having to ask the interwebs.
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@potatoman08 pi = 3.14
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Should I use the same step s to find the surface area of cylindrical grain silo with hemispherical top?
joella32155 2 years ago
For the cylindrical grain silo with hemispherical top you would use add the lateral area of a cylinder (the rectangular part in my video) to the surface area of a hemisphere (which would be half the s.a. of a sphere). What I'm not sure of is if you should include one circle for the base, that would depend on the given information in the problem you are solving. If the base of the silo is just going to be dirt, and you want to know how much material is needed to build the silo, then no.
BabelMath 2 years ago