Surface Area of a Cylinder - Corbettmaths

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  • čas přidán 3. 04. 2013
  • Corbettmaths - This video shows how to find the surface area of a cylinder

Komentáře • 27

  • @simonbottrill
    @simonbottrill Před 3 lety +54

    Hours sat in a class room and nothing. 5 minute video and its all fallen into place. Great video thanks

  • @dromer4690
    @dromer4690 Před 6 lety +106

    Dude do you know what? your smart

  • @safiamokha4048
    @safiamokha4048 Před 3 lety +18

    i just wanted to say a huge thankyou! you have helped me out so much! Thankyou!!

  • @mxr6293
    @mxr6293 Před 3 lety +13

    thank my teacher hes giving your channel our school

  • @charliesmith1984
    @charliesmith1984 Před 5 lety +27

    Cheers got a test tomorrow

  • @Ethan-mh1jo
    @Ethan-mh1jo Před rokem +3

    Thank you great explanation and thanks for keeping it short and concise not deviating

  • @Ok-oe6dt
    @Ok-oe6dt Před rokem

    thank you so much for making this visual

  • @blinx8706
    @blinx8706 Před 2 lety +7

    I’m doing my m3 test tomorrow and one thing I’m worried about is If I multiply it by 3.14 instead of the pie key and get a slightly different answer , in the mark scheme do I still get it correct? The other thing is if I get a long decimal as my answer what do I round it too?

    • @corbettmaths
      @corbettmaths  Před 2 lety +7

      Hi, good luck for tomorrow!
      1) In terms of using 3.14 instead of the pi button, I would always recommend using the pi button as it is more accurate. The only exception being if you are told to use 3.14 in the question.
      2) If you look at Q3 on the Jan 2020 paper on the volume of a cylinder. The answer was wanted to at least 2 decimal places. 1696.46cm^3. Look at point viii on page 3 here ccea.org.uk/downloads/docs/Past-Papers/cleared/GCSE/GCSE%20Mathematics%20%20%282017%29/2020-January/Standard/0/GCSE-Mathematics%20-504-January2020-Higher%20Tier%2C%20M3%20%28With%20Calculator%29-MS.pdf

  • @kattarallapinky9206
    @kattarallapinky9206 Před 2 lety +1

    Wow amazingly explained

  • @louisevans8838
    @louisevans8838 Před rokem +2

    Thank you very much!

  • @2kDanger
    @2kDanger Před 6 lety +15

    thank you

  • @coasterdaggerx7540
    @coasterdaggerx7540 Před 3 lety +2

    Thanks 😁

  • @sreedevi4260
    @sreedevi4260 Před měsícem +1

    For the formula would 2PiR(r+h) work?

    • @corbettmaths
      @corbettmaths  Před měsícem

      From a quick look, that seems correct too... just factorising 2pi r^2 (area of the two circles) + 2 pi r h (curved surface) 👍

  • @denzilmemememeememe6219
    @denzilmemememeememe6219 Před 2 měsíci +1

    Hi in my m4 past papers and mocks i seem to do very well but it all goes to waste as the last questions (usually 7 marks) i can never do my gcse is in 5 days i was just wondering how i can improve

    • @corbettmaths
      @corbettmaths  Před 2 měsíci

      It’s great that you’ve done well understanding everything. Watch tomorrow’s video (1 Day to Go) and I give some tips… it’s normal that the last questions are tricky, but try to apply whatever maths you think you should and be sure to show your workings. By doing this, hopefully you’ll get it right but if not, you may pick up method marks. Also look at the grade boundaries, you don’t need to get everything right to get the top grade in M4. Good luck

  • @tomcampbell2461
    @tomcampbell2461 Před 4 lety +2

    corbett maths be big brain

  • @ariawolf8959
    @ariawolf8959 Před 4 lety +2

    BIG BRAIN TIME 🧠

  • @olliegains
    @olliegains Před rokem +1

    Thanks

  • @nazeefazaman5835
    @nazeefazaman5835 Před 2 lety

    thx

  • @izacplowman5521
    @izacplowman5521 Před 2 měsíci +1

    Anyone here in 2024?