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#1 2008-10-14 06:52:35
- gmsc
- Member
- Registered: 2008-10-05
- Posts: 11
Pizza formula?
I've just finished cooking a pizza. Assuming it came out perfectly cylindrical, and has a radius z and a thickness of a, what is the formula to figure out its volume?
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#2 2008-10-14 06:56:43
- mathsyperson
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- Registered: 2005-06-22
- Posts: 4,900
Re: Pizza formula?
Its volume would be πz²a, unless I'm missing something.
Edit: And after typing that formula out, I've realised what that something is. Nice one. 
Why did the vector cross the road?
It wanted to be normal.
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#3 2008-10-14 12:45:38
- gmsc
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- Registered: 2008-10-05
- Posts: 11
Re: Pizza formula?
Its volume would be πz²a, unless I'm missing something.
Edit: And after typing that formula out, I've realised what that something is. Nice one.
For those who missed it, the formula above is correct, but the longer version of the formula is: pizza
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#4 2008-10-14 16:39:03
- MathsIsFun
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- Registered: 2005-01-21
- Posts: 7,713
Re: Pizza formula?
So nice! Can I put that on the "Maths is Fun" website so people can easily remember the formula?
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#5 2008-10-15 06:42:48
- gmsc
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- Registered: 2008-10-05
- Posts: 11
Re: Pizza formula?
Please do! It's not original with me, however, as evidenced by Mathworld's "Pizza Theorem" entry.
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#6 2008-10-15 10:14:12
- MathsIsFun
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- Registered: 2005-01-21
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Re: Pizza formula?
OK, I updated my page. Have a look: Spinning Cylinder
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#7 2008-10-15 19:21:08
- gmsc
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- Registered: 2008-10-05
- Posts: 11
Re: Pizza formula?
That's great! I like the graphic.
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