Happy pi day, everyone!

Question

A baker is working a batch of dough. He shapes it into a cylinder of height a and radius z.

What will the baker make from this volume of dough?

Title must be "Hap'pi day everyone" :) – val - disappointed in SE Mar 14 '19 at 20:29 — val - disappointed in SE, Mar 14 '19 at 20:29

score 51 · Accepted Answer · answered Mar 14 '19 at 11:54

51

He will make

pizza.

The volume is

Height times pi times the square of the radius, i.e. $pi * z * z * a$.

answered Mar 14 '19 at 11:54

Jafe

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Wow that was quick! Well done. I will award the tick at the end of the day. – Stewart Becker Mar 14 '19 at 12:05
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either that or pizaz! – it's a hire car baby Mar 15 '19 at 15:31

score 18 · Answer 2 · answered Mar 14 '19 at 11:55

18

Old joke - he's making pizza: pi * z * z * a

answered Mar 14 '19 at 11:55

Jeff Zeitlin

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Very quick! The old ones are the best ones! I will award the tick at the end of the day. – Stewart Becker Mar 14 '19 at 12:06
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Got ninja'd again?! >:( – Mr Pie Apr 16 '19 at 21:36
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@user477343 - Meh. Can't help it if there are people who can type faster than me... :) – Jeff Zeitlin Apr 17 '19 at 11:57
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Well, I don't think it's fair: it's about how fast you get the answer, not how fast you can type the answer... but since it's online, what can you do? Hence, it's unfair. So you know what I do for those who get ninja'd? ;) – Mr Pie Apr 17 '19 at 14:16
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@user477343 gonna wait and post my answer a few seconds late in the future just so that you give me a bounty ;P – Brandon_J Apr 23 '19 at 18:29
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@Brandon_J Hahaha, well that may work ;) – Mr Pie Apr 23 '19 at 21:11
Jeff, congratulations on the $\boxed{\color{blue}{+100}}$ rep bounty, and a further congratulations on getting past 3k rep! :D – Mr Pie Apr 25 '19 at 05:27

score 14 · Answer 3 · edited Mar 14 '19 at 14:01

While I agree with Jeff's answer, it also depends on the actual height and radius used.

If a > 1" (perhaps even 1/2" because dough rises with yeast assuming a typical pizza batter), the pizza will be way too thick to resemble pizza. Typically crusts (before baking) are way less than a < 1/2", though I've never tried a thick-pan crust.
Also if z < 3", the pizza will be far too small to be a realistic pizza. (Mini-pizzas at z = 2"?)

But given realistic values of a and z, I certainly agree with Jeff's answer.

(I'd add a comment instead to Jeff's answer, but reputation '50' is required for that.) :(

Happy pi day.

Even with a big tall cylinder of dough, he'll still make pizza because that will be the volume he'll make. — it's a hire car baby, Mar 15 '19 at 15:33

score 9 · Answer 4 · edited Mar 14 '19 at 14:32

9

Volume $V$ of a cylinder of given height $h$ and radius $r$ is given by $V = \pi r^2 h$.

Therefore,

the volume of said object is $\pi z^2 a$. But since today is pi day, I assume the correct answer is pizza.

:)

edited Mar 14 '19 at 14:32

AHKieran

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answered Mar 14 '19 at 13:46

insomniac

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Happy pi day, everyone!

4 Answers4