Total Surface Area - the trick to getting it right

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  • čas přidán 25. 05. 2013
  • There is no trick to doing surface area quickly, but there is to getting the right answer every time. Be a math genius with mental math.
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Komentáře • 310

  • @blazingphantom2813
    @blazingphantom2813 Před 5 lety +178

    This was very informative. Why do textbooks make it seem so complicated?

    • @buggaboo3279
      @buggaboo3279 Před 4 lety +8

      cuz you have to read it. its easy when somrbody who knows what theyre doing is explaining it

    • @paigewinters6048
      @paigewinters6048 Před 3 lety +18

      Yah and my teacher makes it so confusing

    • @fatima-if2fo
      @fatima-if2fo Před 3 lety +3

      @@paigewinters6048 ikr

    • @aliamin8419
      @aliamin8419 Před 3 lety +4

      Teachers jst torture us instead of explaining

    • @sanityslayer5291
      @sanityslayer5291 Před 2 lety +1

      because it’s complicated

  • @pyrofuzion
    @pyrofuzion Před 8 lety +68

    Really helpful video. I liked the trick with using the vertex to see what you have already worked out.

  • @petewentzfrommychemicalrom3114

    I am binging on these videos because I have a test in a few hours and I am panicking

  • @dvo5808
    @dvo5808 Před 8 lety +43

    This guy's voice... British/Australian voices = the only reason i can learn anything.

  • @GREATSLUMBER
    @GREATSLUMBER Před 6 lety +19

    Aight thank you. My class is too loud and my teacher struggles to teach us, so it makes it hard to focus in class.

    • @jxxrdan68
      @jxxrdan68 Před 5 lety

      RiftOnly Yep Noisy classes hey

    • @me_thatme1339
      @me_thatme1339 Před 4 lety

      I have the same in my class. ;/

    • @lean3033
      @lean3033 Před 3 lety +4

      At least y'all teacher's try mine is always on the phone

    • @tristan5735
      @tristan5735 Před 3 lety

      Thus is why I’m home schooled

  • @lazlaz59
    @lazlaz59 Před 6 lety +5

    thanks i needed this for my year 9 test

  • @successhappiness3657
    @successhappiness3657 Před 9 lety +9

    i had no idea how to find the surface area for my homework and i was extremly frustrated and you have helped me sooo much thank you.

  • @ahmedeltantawi
    @ahmedeltantawi Před 5 lety +9

    Thanks for explaining the total surface area!👍👍👍👍

  • @jooliver355
    @jooliver355 Před 6 lety +2

    I am so glad I looked up a video for this. My teacher is giving use these formulas that make it 10 times harder to understand. Great video! I need to show this to her.

  • @pacificdanger1785
    @pacificdanger1785 Před 8 lety +39

    1 part of cheat sheet done... 3 more things to go! :( thanks man youre really helpful :)

  • @Lily-yf4mi
    @Lily-yf4mi Před 8 lety +52

    that laugh though 11:06 "hehehe"

  • @thronemates
    @thronemates Před 3 lety +4

    My teacher spent almost all month to teach this and you did it in 16min LOL

  • @tawanawilliams8411
    @tawanawilliams8411 Před 3 lety +3

    thank you so much i was about to cry cause i didn't understand

  • @theyluvfernn
    @theyluvfernn Před 3 lety +4

    Omg I never realised how easy this could be thank you so much 😊

  • @mrsbell100
    @mrsbell100 Před 8 lety +33

    I love how simple u keep things👍

  • @levashan6300
    @levashan6300 Před 4 lety +7

    Just a suggestion you can just times the area of the square by 2 because theres 2 square bases and then times the area of the rectangle by four for the same reason

  • @FatemaAkter-tv1zc
    @FatemaAkter-tv1zc Před 6 lety +3

    really helpful and I like how to keep it simple and easy Thank you for making this video

  • @Sara-kv2tk
    @Sara-kv2tk Před 4 lety +3

    Thanks u very much. I have a test coming up and I rlly needed this!

  • @FANGaus
    @FANGaus Před 7 lety +8

    Great video, really helped me prepare for my Exams. Keep up the great work.

  • @embeesictetree6603
    @embeesictetree6603 Před 5 lety

    This video was really helpful unlike some other videos on CZcams. You took your time explain and I liked how u showed more than 1 3D shape!! Thank you:)

  • @TheGamer-hf2wp
    @TheGamer-hf2wp Před 6 lety +6

    Thanks for helping me. This is the best tutorial I found.

  • @Lankyblankman
    @Lankyblankman Před 5 lety +15

    Thank you middle aged Australian man

  • @ayahi3265
    @ayahi3265 Před 6 lety +3

    THANK YOU SOO SO MUCH!!! This video helped a lot keep up the great work ❤️❤️❤️❤️❤️❤️

  • @kamramann8112
    @kamramann8112 Před 8 lety +56

    I got confused on the triangular prism

    • @vaugnstein6537
      @vaugnstein6537 Před 6 lety +2

      Blue Tube do that method but divide it by 2 because if you just leave it that will be the surface area of a cuboid but if you divide it by 2 that will be a triangle

    • @luqmanmohamed8881
      @luqmanmohamed8881 Před 5 lety +1

      VaugnStein (1/2xbh)

    • @gogo547873700
      @gogo547873700 Před 4 lety

      @@vaugnstein6537 thanks for the explanation really helpful

  • @kanozs
    @kanozs Před 7 lety

    THANK YOU SO MUCH! THE X2 WAS THE THING I WAS MESSING UP ON! THX VERY MUCH!

  • @sumaiamahad9529
    @sumaiamahad9529 Před 3 lety

    This helped so much I'm so thankful they made this video

  • @simon893
    @simon893 Před 6 lety

    Good video. I liked how clear it was.

  • @zorinxd5554
    @zorinxd5554 Před 4 lety +4

    LW LH HW times those and add them up. x2 the final answer after finding the sum in LW LH HW. then put m2 or cm2
    Edit:rectangular prism

  • @leahjonellemoodley2786

    helped me ALOT. Very good at explaining

  • @s.andunisn
    @s.andunisn Před rokem

    Thanks so much! Really helped my tuition homework. Your my go-to math helper 😊

  • @mustafasyed123
    @mustafasyed123 Před 4 lety

    You are really helpful and you are good at explaining. I’m from the UK by the way

  • @daoudkhamush2069
    @daoudkhamush2069 Před 8 lety

    Thank you!!! I couldn't understand it but this video bombed it! Thanks!

  • @Randy2
    @Randy2 Před 6 lety

    thank you so much for your help !! you're better than my maths teacher :)

  • @progamerxxz9619
    @progamerxxz9619 Před 3 lety

    You are a kind gentleman thank you for helping me I owe you

  • @jamesisland9334
    @jamesisland9334 Před 4 lety +1

    Appreciate the lesson mate

  • @m6ramos
    @m6ramos Před 6 lety +1

    thank you so much!!! so happy i clicked on your video !!!

  • @mikeyh6933
    @mikeyh6933 Před 3 lety

    Thank you soooo much for that circle tip 2:47

  • @mmz157
    @mmz157 Před 7 lety

    Good video 👍
    I've been looking for videos for SATS and this is the only good video

  • @dcramirez8130
    @dcramirez8130 Před 7 lety +1

    thanks for the video

  • @jillklassen36
    @jillklassen36 Před 5 lety

    thanks man!this is reAlly helpful!

  • @liasolano5627
    @liasolano5627 Před 5 lety

    This was the best help 😓 thank you🌼

  • @ignaciomz12
    @ignaciomz12 Před 6 lety

    Thanks i have my end of the year exams tomorrow and this helps a lot

  • @haydnsears7967
    @haydnsears7967 Před 5 lety

    This is a lot of help Thankyou!!

  • @lethumaseko6859
    @lethumaseko6859 Před 7 lety +1

    Thanks FAM!

  • @meganreekie8775
    @meganreekie8775 Před 7 lety +1

    Thank you!!!

  • @KowboyUSA
    @KowboyUSA Před 11 lety

    Thanks for the help.

  • @renewd
    @renewd Před 6 lety +1

    Great presentation. Which software program are you using. Nice graphics.

  • @muzzammilsamaai7254
    @muzzammilsamaai7254 Před 5 lety

    Thanks for the hlep. It really helped me

  • @karamsandhu1598
    @karamsandhu1598 Před 5 lety

    Helped me a lot thank you 😁

  • @selisawalker9077
    @selisawalker9077 Před 9 lety +3

    thx this really helped me
    : )

  • @KTAlex-rr5oy
    @KTAlex-rr5oy Před 5 lety

    I like it. Thanks for explaining

  • @oderzy520
    @oderzy520 Před rokem +1

    thx it really helped me

  • @endme904
    @endme904 Před 4 lety +9

    Can anybody relate doing work during isolating moments? I mean , I miss my god damn friends but it could be worse... Unless-

  • @picklefido
    @picklefido Před 7 lety

    omg i finally understood this thank you soooooooo much

  • @harveerbains9149
    @harveerbains9149 Před 8 lety

    This trick is a successThank you whoever u r

  • @brianwatermel0n
    @brianwatermel0n Před 4 lety

    thank you!!! this was helpful

  • @DavidCad3na
    @DavidCad3na Před 3 lety +1

    thank you so much I have a math test tomorrow

    • @tecmath
      @tecmath  Před 3 lety +1

      Good luck mate. Please let us know how you go.

  • @grclabel
    @grclabel Před 5 lety +19

    I hope im going to pass my exam with this

    • @chantaltitus6465
      @chantaltitus6465 Před 4 lety +1

      Same

    • @gogo547873700
      @gogo547873700 Před 4 lety +1

      So did u pass tho

    • @davis235
      @davis235 Před 4 lety +1

      Me too. But my exams are canceled because of the virus

    • @laboose6598
      @laboose6598 Před 4 lety +1

      Kelliesha Davis I wonder if their gonna postpone the exams

    • @davis235
      @davis235 Před 4 lety +1

      @@laboose6598 I wonder too

  • @jaimeclavecillajr.5100

    very helpul video,thanks

  • @SeekersMinistry
    @SeekersMinistry Před rokem

    Thank you!

  • @yancyjuarez7668
    @yancyjuarez7668 Před 4 lety

    Thank you so mucho, now I can help my daughter with her homework

  • @BreadValley
    @BreadValley Před 6 lety

    Very helpfull, thanks alot

  • @simpleasthat1969
    @simpleasthat1969 Před 3 lety

    Thanks i finally understand now!

  • @likithagatta9333
    @likithagatta9333 Před 7 lety

    You are so easy to understand

  • @dominicrodriques3583
    @dominicrodriques3583 Před 3 lety

    my gosh you did what no other teacher could you got me a A i am forever in your dept your the MAN

  • @blinify1950
    @blinify1950 Před 3 lety +1

    Well I have a test. On Friday. Hope this can help

  • @alicem5862
    @alicem5862 Před 3 lety +3

    7:07 - why didn't you halve the 6cm (height of triangle), like you halved the 8cm for the base?

    • @shazam4106
      @shazam4106 Před 3 lety

      Because the height isn't halved in the equation. Only the base is

  • @levid-hh2by
    @levid-hh2by Před rokem

    such an enthusiastic vid

  • @alexzafrasanchez220
    @alexzafrasanchez220 Před 6 lety +1

    wow this video was great

  • @haha12619
    @haha12619 Před 5 lety +1

    Thank you for this. I kept getting confused but now I actually understand this at a slower pace!!!

  • @silent_endeavours
    @silent_endeavours Před 3 lety

    Thanks or the video! What a great relief to finally get it😂

  • @sodakim3541
    @sodakim3541 Před 5 lety

    You're a genius:3 thx!!!

  • @chastydulay4131
    @chastydulay4131 Před 6 měsíci

    This video is really helpful for the upcoming math contest that i am participating 😊.

  • @shahadlugman1614
    @shahadlugman1614 Před 3 lety

    Thank you 😊

  • @cilicate4109
    @cilicate4109 Před 7 lety +1

    Thanks

  • @AayanKhan-me3to
    @AayanKhan-me3to Před 4 lety

    Very helpful

  • @mharish8328
    @mharish8328 Před rokem

    This video was very useful

  • @user-hq9ib6ec7e
    @user-hq9ib6ec7e Před 7 lety

    Thanks man

  • @ryanb2025
    @ryanb2025 Před 6 lety

    Thx helped me allot

  • @rahulagarwal9912
    @rahulagarwal9912 Před 9 lety

    txs for the vid

  • @divakardalli
    @divakardalli Před 4 lety

    Thank you

  • @aliahsan507
    @aliahsan507 Před 4 lety

    Thanks 4 the vid :)

  • @bethgimo8756
    @bethgimo8756 Před 8 lety

    Thanks a lot bud

  • @elvanwyk6573
    @elvanwyk6573 Před 6 lety

    You're awesome.

  • @trevormokhine9656
    @trevormokhine9656 Před rokem

    Dis really helped me

  • @billz6791
    @billz6791 Před 7 lety +1

    thx

  • @kavitaharrinarine3032
    @kavitaharrinarine3032 Před 5 lety

    thank u soo much

  • @rutythegames
    @rutythegames Před 5 lety +1

    7:19 shape is like an optical illusion it has two ways of looking at it

  • @aleh.6302
    @aleh.6302 Před 7 lety +1

    Nice video. Do you have one on lateral surface area?

  • @vneckthetrey6759
    @vneckthetrey6759 Před 5 lety

    Thank u

  • @akajxi_6014
    @akajxi_6014 Před 6 lety

    helped for my test at school thx plz reply

  • @JohnCena-vp3jf
    @JohnCena-vp3jf Před 8 lety +2

    You know what..?? You're my online teacher 😂😂 I ain't joking 👍🏻💯

    • @SSJ540
      @SSJ540 Před 4 lety +1

      John Cena ikr 😁

  • @joyjo4580
    @joyjo4580 Před 7 lety +1

    thanks

  • @omnicronarmoured9427
    @omnicronarmoured9427 Před 6 lety +16

    The Formula would be L x W + W x H + L x H x2

  • @callieochsner7325
    @callieochsner7325 Před 5 lety

    Thanks !!!!!

  • @moreshamatthews3069
    @moreshamatthews3069 Před 5 lety

    thank u

  • @zohanstein890
    @zohanstein890 Před 3 lety

    you're a true lord

  • @rohunsokia6165
    @rohunsokia6165 Před 4 lety +3

    Came here cause i have a test and forgot😂😅

  • @madisongoliath2450
    @madisongoliath2450 Před 4 lety

    Heheh this was helpful tysm

  • @thomasstephens1623
    @thomasstephens1623 Před 7 lety

    cheers m8