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Surface Area of a Sphere

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Uploaded by on May 22, 2009

This video gives you a visual representation of the formula for finding the surface area of a sphere.

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People & Blogs

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Standard YouTube License

  • likes, 8 dislikes

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  • can u help me. Why are exact 4 circles? How can we prove that in math?

  • You could define an adult as some one who prefers not to waste time like this, and instead of some failing measurement technique, decides to calculate it way more accurate and precisely.

    Now a child however who only cares for fun, will always decide to either go against the adult (puberty) and thinks that his fun is more important then any thing else. Who is the child and who is the adult now?

    On that note, this adult will decide that the conversation ends here. Please childishly bitch at me!

  • You know when you ask a 5 year old to define a word:

    Adult: Please define the word definition, Billy.

    Billy: A "Definition" is a word's definition.

    Adult: Go back to flaming on youtube, Billy. You are hopeless.

    To put it nicely, in this case @LichexJenkins, you are NOT the adult.

  • good job

  • This is very interesting approach.

  • This seems rigorous.

  • @EclecticSceptic At least that means im smarter then the smartest person ever. Oh wait, there we have a paradox :O

  • @LichexJenkins Congratulations, you are Einstein's mentor.

  • O=2πr

    A=4πr²

    If we would make r=2 to make calculations easy.

    O=12.566

    A=50.264

    A/O = 50.264/12.566=4

    I could have told you that witha calculator and 30 seconds of work.

    Nice job, you wasted half an hour of your time!

  • You're right this music is nauseating! So, you ended up with four pies then, ha ha!

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