Cylinder volume and surface area | Perimeter, area, and volume | Geometry | Khan Academy

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Finding the volume and surface area of a cylinder

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Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.

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surface area: 3:25

Hope this helped 😊

megamind
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This dude isn't annoying or meandering at all. Truly refreshing, thank you.

eliwilson
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Who is here at 2020 and got assigned this in online CLASS...

jcker.
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Your videos helped me so much i passed my math class because of your videos

safewordpineapple
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All that to get one answer maths is so fustrating

gihalersebastien
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Thank you so much. The rest of the videos I've watched have people who have the worst voices ever, I'm glad you teach very well and don't talk like we are idiots.. Thanks again!

angelhaven
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Today is going to be pre much watching massive amounts of khan videos because I need to get a 74 on my final exam to pass my math 9 course this friday!!!!

TheGreatAvocado
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My teacher asked my class who heard of Khan videos...
I was proudly the only one who raised their hand!

NinjaMinkzx
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Thanks for explaining this to me, I'm preparing for grade 8 math so this was a big help!

myg
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I love how school ruin your grades by forcing you to learn about stuff you will never use a single Tim in your 80 years of living

infernotara
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For the surface area I think this would be easier:
2pi(radius) (radius + height)
=2pi (4) (4+8) [use calculator]
=96pi
:)

sereenairlines
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I'm in 7th grade and this helps so much for my class bc everything my teacher says is over my head

blayy
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Who is here at 2023 and got assigned this

Chan_EditzYT
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I got none of
Nice video!!!!
I love your other

MsHoneybooboochild
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Khan academy got me through grade 10, thank you!

emersenbarnes
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I have milestones tomorrow, this really helped me out thank you so much!

tkntf
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My book says square the radius, multiply by pi, and multiply by the height

jamesdenoia
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thank you so much! i have a gr9 math exam tomrow and without this i woulda failed it! thans soo much! :D THIS HELPED SO MUCH

GotRxcks
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Thank you so much I passed my test cuz of this

zanetinawi
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all of your videos have helped get better grades in my math

johnmartinello