Surface Area of a Cylinder - VividMath.com
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- Опубліковано 22 сер 2024
- Get your free lessons: vividmath.com
Use the Surface Area of a Cylinder formula (A=2πrh+2πr^2) to solve for the Surface Area.
See all Surface Area lessons: vividmath.com/...
Steps:
1. Find the radius of the cylinder. Simply divide the diameter by 2 (recall that the radius is equal to half the diameter)
2. Substitute the known values (radius and height) into the Surface Area of a Cylinder Formula (A=2πrh+2πr^2) and solve.
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![What is Volume of a Cylinder? - [8-8-7]](http://i.ytimg.com/vi/_NXgTp8annM/mqdefault.jpg)
In this video we use _π = 3.141592654_
There are different variations of *π* you may use:
Using _π = 3.14_ the answer is: *828.96*
U have no idea how helpful this is, every other video is hard to understand.
i have an exam tomorrow, this helped a lot. Thank you!
wait meters... that's a big flower pot O.O
Read my mind
Please note that we a finding the surface area of an "open" cylinder. It means we do not have a lid.
if there is a lid would the formula be 2 pi r squared + 2 pi r h ?
This guys videos helped me learn my whole math unit in grade 9 math! Blessed
thanks
thank you very much you help me to my homework. thank you very much again 😀 now I know how to get the volume of pyramid and cylinder..... I will subscribe, like , and share this.... thank you again 😊😊😊😊😊
I like how he shades the bottom side of the box and on the right. I mean starting from here 5:44
this helped me a lot thanks vivid math but i just have one suggestions, just put the decimal point lower because the place that you put it could result in multiplication
right
U explain so well
thank you it really helped me i will watch this instead of maths at school
Very easy to comprehend thank you. ☺️
My test is tomarrow and this saved me
did you pass
@@user-ko5dx6zt2t yes I did :)
If i utilize this formula to get the radius works? 2pi.r=d? 2(3.14)(x)=12 ?
+Randage Jr Yup
So informative I really appreciate it. I thought it was simple and explained very well thank you.
Very helpful, Thank You!!
Thanks! Great help :)
Thank you! I'm doing this for 6th grade math ;_;
nice vid learned a lot
omg thank you so much
THANK YOU 🙏 you helped me understand this correctly.
good job, you really helped me with my math homework, i liked and subscribed, i also shared this with my tutor. thank you very much.
me too
carry on with your job
stop this video at 2:59 then pause it and look at his faceXD
what is the different between area , total surface area and surface area?
How do you find total surface area
Wait what, there's no lid?
how do u find the circumference of the circle
You multiply the diameter (12m) by 3.14 (pi). Radius squared (r^2) would be used to find area.
thank you now i know what is a surface area a cylinder
agree
answer is wrong
jake taylor Did u hear that he is doing an open lidded cylinder?
answer is NOT wrong.
Your answer is wrong
yah, I think so too....... I guess
I got a different answer too
when he looks to the right to see the answers HAHAHAHA. Really good video though, helped a lot with my revision!!
What about how to find the area with the lid on? Is there a video for that, or...?
just use the orginal formula
nub
or what? or you#lol
If you want a lid on it just use the top formula. Surface Area = 2πrh + 2πr^2.
@@VividMath only 3 years late
Thanks
What the fuck did I just watch?!?!
I did everything exactly right but the answer won't come out..help me please
If you see in the vid, he says that the top does't count since he doesn't want a lid on the cylinder. So instead of 2pirh + 2pirsqrt, it will be just 2pirh + pirsqurt
Let me help you SA=2×pirh×6×19+pirh+6squre = 2×(3.14)×6×19
=716.28+(3.14)+36
716.28+113.10
=829.38//
Note pirh=(3.14)
if he's substituting the formula, shouldn't he say 3.14 instead of pi? And you can see him looking off to the side for the answers.
+Grace Infinity pi equals 3.14..... same thing
is the lid always going to be off or?
sneaky look for answers haha but good really helped
im doing this stuff in the 7th grade though
did i say 7th
i meant to say i used to do this in 5th grade
i had to teach the 5th grade some math so i had to use this video
I am doing#doing
He starts at 1:33
When your working with just a circle is it just the number x 3.14
no it is called pi. So the formula for the cylinder is Pi (3.14) x r squared
2.47 m2
Your answer is incorrect but the correct answer is 942.47 m2
read the description.
lol.
He makes the vedio so interesting...thank u
instead of halving the diameter then double it ,just write it itself
Why exclude the lid?
+Gariant Saucey 666
Is there any shortcut..your making it complicated!!
No u just arent on an 8th grade math level🤔🤔
I thought it was very simple and he couldn’t of said it clearer. I’m in year 7 btw (grade 6)
I understand this better than when I was thought this in school.
Is it just me that finds all these videos really complicated with everything abbreviated like surface area is SA?
You will learn it help me.And stop being mean people.
Ansumana Nyei hush CT jxhd h I don't know what I said I don't know if you don't want to do it for me I was like oh 👌 I will have to do that to me I have to go back to 😴 now baby
why
Keep it simple god!
thank you I got it 👍👍👆👆☝👊🎉🎈🎆
guys an easier way is to find the circumference of the bottom/ circle and times that by the height u will get the surface area
open lid cylinder in this case..
Is The Right Answer 828.98m2 ??
No its 829.38m2.... Not your crap anwser
Correction Succesful
Wrong answer. Should be 942.5 m squared.
I dont get it😓
How big are the flowers in that pot
the number is not correct i worked on it
Ok, let me ask you, where did he go wrong in the equation? He stated at the beginning that the cylinder had a open lid, which means we don't count the 2 of the equation, 2 pi R squared, which leaves us with only pi R squared, the rest can be done on calculator. If I am wrong, please point it out, because I'd like to know.
Edit: The 2 would stand for the two lids of the cylinder.
Daniel Rinnunga hi! the formula is 2 πrh + πr square...the final answer needs to be 828.96m square.
In details : 2 x 3.14 x 6x 19 + 3.14 x6 x6 = 828.96m square
yup, I knew it
that's my answer too
he also said he rounded some answers
The answer is wrong!
No, he is using pi to over a trillion places, not 3.14 I believe
ok, he said the CAP IS OFF
Friends
i got 715.92 how again?
Nobhead
WHY DOES HE ALWAYS STICK HIS TONGUE OUT AT THE END OF EVERY VIDEO??
ikr
bruh chillout
ha lol he does its
a smug face that he got a question right I guess
tongue is pink colour. I like
this guy confusing the shit out me !
Do you eat a pizza and cola!
I thought the formula was:
2PIr2+2PIr×h
Bad maths
online english leaungauge centr
Amanullah khan niazi excuse me?
Tak
Lol
Oh
oh
wow you did it wrong
How?
did you hear that the top lip was OFF
I'm failing math cause I don't get this shit
dont worry man im almost with u... :(((
don't say bad words. just pray to God. just pray always 😏😮
Isabel Castil Makiling don't ever tell me to pray to fucking god
no !! don't say that !! God loves you... keep calm
Isabel Castil Makiling STAP
YOU DID IT WRONG!!!!!! you said multiple 2, 3.14, 6, and 19. I got 715.92, how in the world did you get that???? You should go back and check your answers before you post a public video that is WRONG!!! OMG!!!
Stormy Prevatt you are a dumb ass
wow. so over complicated. there are many easier ways to do this.
How? I'm doing a midterm tomorrow
+bubu hassan
such as?