It’s time to be irrational and celebrate π (Pi) Day!

Will you slice up this quiz and get 5/5 or are you going to eat humble pie?

### #1. Why is March 14th celebrated as Pi Day?

Pi Day is 14 March, because the first three digits of pi are 3.14. It’s also Einstein’s birthday!

### #2. If you have a one-metre-tall wheel and you roll it one full rotation, how far does it travel?

The wheel would roll exactly π metres, which is about 3.1.

### #3. Who, in 1706, first gave the Greek letter π its current mathematical definition?

British mathematician William Jones used the symbol π to represent the number 3.14159… in 1706. It was later popularized by Swiss mathematician Leonhard Euler.

### #4. True or false? Geeks invented a dialect known as Pilish, in which the numbers of letters in consecutive words match the digits of π.

True. Pilish was invented in the early 1900s as a way to remember the digits of π.

### #5. Which pie filling is a member of the rose family?

All of these fruits are members of the Rosaceae family.

## Results

Congratulations! You are a real science whiz!

Oh dear! Better brush up before the next quiz!

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