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I'm just a little curious with these formulas because I like to understand a formula before I use it. There's no doubt I've been using these since gr3 but I would like a mathmatical derivation of them.
[tex]V_{cone}=\frac{A_bh}{3}[/tex]
[tex]V_{pyramid}=\frac{A_bh}{3}[/tex]
All I would like to know here is why by 3?
And just
[tex]V_{sphere}=\frac{4\pi r^3}{3}[/tex]
With this one I have no clue why it is what it is. There are [itex]4\pi [/itex]radians in a sphere maybe??
Thanks in advance.
[tex]V_{cone}=\frac{A_bh}{3}[/tex]
[tex]V_{pyramid}=\frac{A_bh}{3}[/tex]
All I would like to know here is why by 3?
And just
[tex]V_{sphere}=\frac{4\pi r^3}{3}[/tex]
With this one I have no clue why it is what it is. There are [itex]4\pi [/itex]radians in a sphere maybe??
Thanks in advance.