Formula for Surface Area of a Sphere: Video IIII (Tanton: Mathematics)
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Uploader Comments (DrJamesTanton)
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All Comments (6)
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im in 7th grade and my teacher wanted us to learn the formulas for SA ans V so he gave us a paper with all t he formulas on it but of course i lost it so now im stuck looking up things like this online
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i am in year 7 and i forced into doing this by my teacher
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it looks like a retarded cupcake.
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thanks for the explanation!
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@DrJamesTanton
I don't know the history of these proofs. What I've seen done is the SA formula used to derive the V formula. But, what you've done is the other way around. Which approach is how the formulas developed in history?
wadams19 9 months ago
@wadams19 I believe Archimedes first deduced the V of a sphere, and then got the SA from that.
DrJamesTanton 9 months ago