# “A pizza with radius ‘z’ and thickness ‘a’ has a volume of Pi*z*z*a”

“Pizzas are cylinders” was posted on Twitter by F’tim on April 10, 2014. “if you think about it, pizza is a very thin cylinder” was posted on Twitter by UsicMusic on September 22, 2016. “A pizza is technically just a very short cylinder” was posted on Reddit—Showerthoughts on October 28, 2018. “A pizza is technically a cylinder….” was posted on Twitter by hunter on December 11, 2018. “Pizza is a rather flat cylinder” was posted on Twitter by IntoMath.org on September 2, 2019. “Pizzas are cylinders, not circles” was posted on Reddit—Showerthoughts on November 5, 2021.

What is the volume of pizza? “Silly ObPuzzle: My local pizza delivery company is called Perfect Pizza. This means that not only do the pizzas taste perfect but they are also perfectly circular and perfectly uniform in depth. They’ve just delivered a pizza with depth a, and radius z. What is its volume?” was posted on the newsgroup rec.puzzles on September 19, 1997. “Did you know that the word ‘pizza’ is a mathematical formula? It is the volume of a circular pizza of radius ‘z’ and thickness ‘a’” was posted on the newgroup geometry.puzzles on February 27, 1998. “Volume of a pizza of thickness ‘a’ and radius ‘z’ is given by pi z z a” was posted on the newsgroup sci.electronics.design on March 9, 2006. ” A pizza of radius z and thickness a has a volume of pi z z a” was posted on Twitter by Selem on March 12, 2007. “A pizza with radius ‘z’, and thickness ‘a’ has a volume of Pi*z*z*a” was posted on Twitter by Ric on December 25, 2010.

Wikipedia: Pizza*Pizza* (Italian: [ˈpittsa], Neapolitan: [ˈpittsə]) is a dish of Italian origin consisting of a usually round, flattened base of leavened wheat-based dough topped with tomatoes, cheese, and often various other ingredients (such as anchovies, mushrooms, onions, olives, pineapple, meat, etc.), which is then baked at a high temperature, traditionally in a wood-fired oven.

Google Groups: rec.puzzles

pizza + anarchy (spoiler)*NickGard*

Sep 19, 1997, 3:00:00 AM

(...)

Silly ObPuzzle: My local pizza delivery company is called Perfect Pizza. This means that not only do the pizzas taste perfect but they are also perfectly circular and perfectly uniform in depth. They’ve just delivered a pizza with depth a, and radius z. What is its volume?

Google Groups: geometry.puzzles

Inscribing Circles inside Integer Triangles*.(JavaScript must be enabled to view this email address)*

Feb 27, 1998, 3:00:00 AM

(...)

Barry Wolk | Did you know that the word “pizza”

Dept of Mathematics | is a mathematical formula? It is

University of Manitoba | the volume of a circular pizza of

Winnipeg Manitoba Canada | radius “z” and thickness “a”.

Google Groups: rec.crafts.brewing

max carboy pressure*JeffMo*

Jan 16, 2002, 2:07:37 PM

I saw a cute mnemonic on a math web site the other day….they were talking about the volume of a somewhat-idealized cylindrical pizza of radius z and thickness (height) a:

Volume = pi暘暘戢

Google Books*CRC Concise Encyclopedia of MathematicsSecond Edition*

By Eric W. Weisstein

Boca Raton, FL: Chapman & Hall.CRC

2003

Pg. 2251:

There is also a second pizza theorem. This one gives the VOLUME of a pizza of thickness a and RADIUS z,

*pizza*

Google Groups: sci.electronics.design

OT: You Can Be Too Nice

*martin griffith*

Mar 9, 2006, 3:40:48 PM

(...)

Volume of a pizza of thickness ‘a’ and radius ‘z’ is given by pi z z a

Selem

@necrodome

his is brilliant: A pizza of radius z and thickness a has a volume of pi z z a.

5:56 PM · Mar 12, 2007·Twitter Web Client

rjorgenson

@rjorgenson

Just a Quick Note: A pizza of radius z and thickness a has a volume of pi z z a

credit goes to Clive 😉.. http://tinyurl.com/2akcdb

12:08 AM · Mar 29, 2007·Twitter Web Client

-ˏˋAlex Bugaˎˊ-

@alexbuga

Cool quote: “What is the volume of a pizza of radius z and thickness a ? Answer: pi z z a” Kind of geek, but I laughed

6:20 AM · Dec 10, 2007·Twitter Web Client

Subhayan Mukerjee

@wrahool

a pizza is a cylindrical volume of radius z and height a !

3:29 AM · Jul 3, 2010·Silver Bird

Ricᜃᜒᜇᜓ

@k__do__

From somewhere: “A pizza with radius ‘z’, and thickness ‘a’ has a volume of Pi*z*z*a.” http://plurk.com/p/9ry6ly

12:05 AM · Dec 25, 2010·Plurk

Temperate Depression Ebni

@Ebni_Agacyt

If we assume the pizza is cylindrical of radius z and height a, then the volume is

V = π*z^2 * a = Pi*z*z*a

11:21 AM · Oct 4, 2013·Twitter Web Client

Reddit—Funny

Posted by u/BuzzBorn April 1, 2014

If you have a pizza with radius “z” and thickness “a”, its volume is Pi(z*z)a

F’tim

@that_s_alright

Pizzas are cylinders

4:40 PM · Apr 10, 2014·Twitter for Windows Phone

Waleed Mohamed

@Mrwaleedmohamed

If we assume that the cylindrical pizza with radius Z is the height of A

So, The Capacity of this pizza is = Pi * Z * Z * A

9:59 AM · Jun 5, 2014·Facebook

Ian Spangenberg

@SpangPhys

Happy Pi Day! Let z=radius; a=height. Then the volume of a cylindrical pizza is pizza.

7:31 AM · Mar 14, 2015·Twitter for Android

UsicMusic

@usickiller

Replying to @TonesBalones_ and @asheramichelle

if you think about it, pizza is a very thin cylinder

5:10 PM · Sep 22, 2016·Twitter for Android

sasuke apologist

@chiefandguide

i came to make a tweet but then i realized pizza is a cylinder and i dont remember what i was going to tweet now.

3:31 PM · Jan 17, 2018·Twitter Web Client

Reddit—Showerthoughts

Posted by u/TARN4T1ON October 28, 2018

A pizza is technically just a very short cylinder

COMMENTS

*Gillerpie*

And if you take that height to be ‘a’ and it’s radius to be ‘z’ its volume is equal to pizz*a

hunter

@hgsuthers

A pizza is technically a cylinder….

Quote Tweet

CORN NUTS

@CornNuts

· Dec 11, 2018

What’s on your mind?

8:27 PM · Dec 11, 2018·Twitter for Android

Hoop Junkie

@burnslow4_20

Guys pizza is a cylinder

Quote Tweet

Fact

@Fact

· Jan 2, 2019

A pizza that has radius “z” and height “a” has volume Pi × z × z × a.

2:01 PM · Jan 2, 2019·Twitter Web App

Peter Crawford

@hmspete

Replying to @edsouthall and @solvemymaths

I used pizza to help my kids calculate the volume of a cylinder. Imagine a pizza is a squat cylinder of height ‘a’ and radius z. It’s volume is therefore pi.z.z.a

8:07 AM · Jan 25, 2019·Twitter for iPhone

Atech Academy

@atechacademy

A pizza that has radius “z” and height “a” has volume Pi × z × z × a .A pizza is basically a very short cylinder, and that’s how you calculate its volume. https://myatechedu.wordpress.com/2019/03/02/a-pizza-that-has-radius-z-and-height-a-has-volume-pi-x-z-x-z-x-a-a-pizza-is-basically-a-very-short-cylinder-and-thats-how-you-calculate-it/

8:21 AM · Mar 2, 2019·WordPress.com

𝕮𝖍𝖗𝖎𝖘𝖙𝖎𝖓𝖆 𝕵𝖊𝖓𝖓𝖎𝖋𝖊𝖗 𝔅𝔖𝔠

@crifferius

Replying to @chillmage

Pizza is a cylinder with radius z and depth a;

Its volume is pi*z*z*a.

4:45 PM · May 28, 2019·Twitter for iPhone

IntoMath.org

@IntomathO

Pizza is a rather flat cylinder.

The Volume of any cylinder BurritoDrum🛢 is: V (cylinder) = Pi*r^2*h

If z is the radius and a is the height (or depth) then

http://intomath.org

#math #ilovemath #iteachmath #mathisfun #backtoschool #mathhelp #parents #mathteacher #learningmath

9:13 AM · Sep 2, 2019·Twitter for iPhone

Jacob

@jacob__eaves

Pizza is a cylinder

8:09 PM · Sep 23, 2019·Twitter for Android

Timmy O’Danaos

@ODanaos

Replying to @B4TTL3S and @DavidMuttering

What do you mean? If the pizza is a cylinder (which is part of the joke) and the base has a radius z and the cylinder has height a, then its volume is given by

V = πz^2a, or

V = Pizza

11:42 AM · Oct 8, 2019·Twitter for Android

Pedro Contipelli

@PC42661428

Pizza is a cylinder.

6:54 PM · Jan 26, 2020·Twitter Web App

John Von John Johnny deep

@harchikehast

Replying to @Iamhappyfarmer

The volume of a pizza with radius z and height a is pi z z a!

A pizza is approximately the shape of a cylinder, so to get its volume, we have to multiply its area by its height. Thus the volume V of a pizza with height a is given by

V=a⋅ A = pi ⋅ z ⋅ z ⋅ a! That’s it.

7:10 AM · Mar 14, 2020·Twitter Web App

Jeb Cooke

@of_jameson

pizzas are cylinders. fight me #PiDay2020

5:18 PM · Mar 14, 2020·Twitter for iPhone

Triani

@leeahni

the top and bottom are parallel to each other is a cylinder. I mean we live in a 3D world, so a pizza is abstractically a cylinder. A really flat cylinder

12:42 PM · Apr 14, 2020·Twitter for Android

lovelyn⁷

@LovelynKookie_

Pizza is a cylinder

i-

1:58 AM · Apr 24, 2020·Twitter for iPhone

lovelyn⁷

@LovelynKookie_

pizzas are cylinders

11:15 AM · Apr 24, 2020·Twitter for iPhone

MathSpire

@MathSpireUK

Assuming #pizza is a perfect cylinder:

Volume of pizza

= area of circular surface x height of pizza

= πr^2h

= pi x z x z x a

#funfact #mathsisfun

10:55 AM · Jun 18, 2020·Hootsuite Inc.

Reddit—Showerthoughts

Posted by u/RhoastedGhost November 24, 2020

If the height is a, and the radius is z, then the cylinder is pizza

Reddit—Showerthoughts

Posted by u/Mrcheldobreck December 28, 2020

Pizza is a cylinder