Proof for Volume of a Sphere (without Calculus)

In this video, I go through a proof for the formula of the volume of sphere without the use of calculus.

I've also built an interactive Geogebra applet to see the cross-section in 3D:
https://sites.google.com/view/matholi...

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• #math
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• #calculus
• #volume
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• #proofs