# What is Pi Day?

**Pi Day** is celebrating the mathematical constant π (pi).
It is officially observed on March 14, 3/14 being the first three
digits of the numerical value pi. It can also be celebrated on
March 4 - when 14% of the month of March has passed.

Pi Approximation Day on the other hand is another math holiday observed on July 22, due to π being about equal to 22/7.

### When is pi day and what is celebrated on that day?

Pi day is on March 14th, because Pi=3.14 It is just a day to celebrate pi Read More

### Why is pi day on pi day?

Answer Pi day is on March 14th or 3/14. This is because an approximation of the number pi is 3.14. Read More

### Why do we have pi day?

We have pi day to sorta symbolize the meaning of pi. I think it is just for fun Read More

### When is ''pi day'' and what is it?

Pi Day is March 14. It is that day because it is 3-14 (the first 3 digits of pi). It is just a day to eat pie (the dessert) and celebrate pi (3.141592653589793238462643383279502884197169399375...) Read More

### What do you do on Pi day?

Pi Day can be celebrated by eating a pie, discussing topics related to pi, dressing in pi-ralated apparel, such as a shirt with the pi symbol on it, or doing anything else related to pi. Read More

### What other month is pi day?

March the 14th is the only pi day because it is: 3/14 (3.14 is pi) Read More

### Who birthday is on pi day?

Pi day is on March 14th or 3/14. This is because an approximation of the number pi is 3.14 Read More

### Why do you celebrate Pi day?

We celebrate pi day because pi equals 3.14........ which is an endless number. It's a fun math class to celebrate pi day on March 14th! Yum... Pie! Read More

### When is pi day and what activity is done on that day?

Pi day is March 14. (3-14). Because an approximation of pi is 3.14, March 14th is called "pi day". Math Geeks from around the world may eat pi, but I, personally, just walk up to random people and with them happy pi days. :D Pi day is March 14(you know, cuz pi stats out 3.14). On that day, people eat pies, do math, and find the area of circles(the formula is A=pi * the radius… Read More

### What other month and day is pi day is celebrated?

Pi Day is celebrated on March 14 (3/14) as Pi is equal to 3.14(159265....) Pi Approximation Day is celebrated on July 22 (7/22) to celebrate Archimede's popular approximation of pi being equal to 22/7 Read More

### What is an event on pi day?

People participate in a wide variety of events on March 14 (the designated day to celebrate pi day). These events usually have to do with the number 3.14 (pi). Read More

### What are some good pi day activities?

you can sing the pi day song Pi day songs All day long. Oh, what fun it is, To sing a jolly pi day song in a fun math class like this. (Repeat) Circles in the snow, Around and round we go. How far did we have to run? Diameter times pi! (jingle bell tune) Read More

### Is my birthday in pi?

Everyone's birthday is in Pi! You can go to http://www.angio.net/pi/piquery to find out where in Pi it is. Happy Pi Day!! Read More

### Why do we celebrate Pi Day and Einstein's birthday on the same day?

Pi day is March 14, or 3/14 because Pi starts 3.14.... We celebrate peoples birthday on the day they were born. Einstein was born on March 14th so we celebrate his, and everyone else who was born on March 14th, on Pi day. Read More

### When was the bill passed to make pi day an official day?

In 2009, the United States House of Representatives supported the designation of Pi Day. Read More

### What i s pi day?

Pi day is when the date is the same to the first few numbers of Pi (3.14) aka March which is the 3rd month, and the 14th. (3/14) Read More

### What day is National Pi day?

Where you celebrate the math term PI by doing PI and eating it. (The food that is.) If you ask me personally I think that it is really lame! ================================ National Pi Day is March 14. It's 3/14 -- get it? Here is the official National Pi Day web site: http://www.piday.org/ On March 14, 2015 at 9:26 it will be 3.1415926!! Cool!! Read More

### What does pi pi sili evolve into?

pi pi sili evolves into pi pi 1st in the mulecular pi industry. But if you subtract the remaining sili, it evolves into the 67th multivrese. but if its pi day, it would evolve into 2.57 Read More

### When was Pi day first celebrated?

The first Pi Day celebration was organized by a physicist at the San Francisco Exploratorium in 1988. Read More

### Where was pi day first celebrated?

The first Pi Day celebration was organized by a physicist at the San Francisco Exploratorium in 1988. Read More

### How many years has pi day been celebrated?

pi day has been celebrated for over 4000 years by=g Read More

### Who is birhtday is on pi day?

Pi day is on March 14th or 3/14. This is because an approximation of the number pi is 3.14 Read more: http://wiki.answers.com/Q/Who_birthday_is_on_pi_day#ixzz1GmBEsuDF Read More

### What is the origin of Pi day?

The first Pi Day was organized by Larry Shaw in 1988. Check the related links for more information. Read More

### What day is international pi day?

March 14th on the 15th hour 9th minute and 2nd second. 3.141592 equals pi Read More

### Why pi day is commemorated on this day?

Because in the m-dd format, the date gives the first three significant digits of pi. Read More

### Why was international pi day chosen to celebrate pi?

International pi day was chosen because it's on March 14 or 3/14 and the first three numbers of pi are 3.14 Larry Shaw, physicist, organized the first pi day in 1988 at the San Francisco Exploratorium. He thought that it would be fun to march around and eat fruit pies. Read More

### Why is pi day on march 7th 2013?

It's not. In 2013, "Pi Day" is on Thursday, March 14th. The only part that's different from any other year is the 'Thursday' part. Pi Day is on March 14th every year. Read More

### Why did God let Albert Einstein be born on pi day?

I think the question would more correctly be posed as "why did the United States, decide to celebrate Pi Day on Albert Einstein's birthday?" Pi Day was started by Larry Shaw in 1988. Einstein was born in 1879 and died in 1955. (He was already dead when Pi day came into existence, so there is no way he could have been born on Pi day.) See the related links below for additional information. Read More

### Why do they have pi day?

Because March 14th are the first 3 digits of pi which are 3.14 Read More

### Pi is usually rounded to what degree of accuracy?

For the vast majority of day-to-day uses, pi is quoted as 3.14. This is equivalent to 3 significant figures, 2 decimal places, or pi 'to the nearest hundreth'. Read More

### What was Albert Einsteins favorite day?

It was Pi Day which is March 14th the day of his birthday. Read More