Surface Area of a Cylinder

[@reznovvazileski3193]

I'm 24 and still not adult enough to watch a teacher put a rectangle between two circles xD

[@charlotteherden91]

Twinkle twinkle little star, circumference equals 2pi r

[@yoavmor9002]

That's quite the unfortunate thumbnail

[@s.mcgyver4206]

that was very helpful
and your'e a great teacher

[@felipehamm6522]

Your videos are great! Keep up with the excellent job!

[@hyosoonkim6413]

mark, get ready to catch

[@scmtuk3662]

Of course, 2πr² + 2πrh can be factorised as both terms contain 2πr, therefore, they can be written as 2πr(r+h)

[@Fletch2022]

Good job teach!

[@grindfi]

i had to figure out how to calculate a slice of a cone by myself, and then what cutout that would be (because none of my maths teachers knew how to do that XD)

[@johnnvarghese7650]

hi

[@lachie.mackay]

i go to CTHS and my youtube channel is XMRetro