Pi, the enigmatic and infinite number, has fascinated mathematicians and enthusiasts for centuries. This quiz will challenge your memory and understanding of Pi’s first 100 digits and some intriguing facts about this mathematical marvel. Get ready to put your Pi knowledge to the test and see how well you can recall and recognize the digits of this famous constant. Let’s dive into the world of Pi and have some fun!

We recommend that you do not leave the page that you are taking this quiz in. Stay honest 🙂

## 100 Digits of Pi Quiz Questions Overview

### 1. What is the first digit of Pi after the decimal point?

1

3

4

5

### 2. What is the 10th digit of Pi after the decimal point?

3

8

9

7

### 3. How many digits of Pi are known as of 2021?

1 million

10 million

50 trillion

31.4 trillion

### 4. Which famous mathematician is known for calculating Pi to many decimal places in the 3rd century BC?

Euclid

Archimedes

Pythagoras

Eratosthenes

### 5. What is the symbol for Pi?

α

β

π

σ

### 6. Pi is the ratio of a circle’s circumference to its what?

Radius

Diameter

Area

Chord

### 7. Which day is celebrated as Pi Day?

March 14

April 3

May 14

June 28

### 8. What is the 50th digit of Pi after the decimal point?

0

1

5

9

### 9. Pi is known as an irrational number. What does this mean?

It cannot be expressed as a fraction

It is a whole number

It is a repeating decimal

It is a negative number

### 10. Which of the following is NOT a digit in the first 100 digits of Pi?

0

2

5

6

We recommend that you do not leave the page that you are taking this quiz in. Stay honest 🙂