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Number Crunch Pi special

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

What is the "formal" definition of Pi?

a)

22/7

b)

3.1415926

c)

the ratio of a circle's circumference to its diameter

d)

the surface area of a sphere of diameter 22/7

2.

What is Pi to the nearest hundredth?

a)

3.1

b)

3.15

c)

3.14

d)

3.145

3.

How many digits are actually in Pi?

a)

10 trillion

b)

5 billion

c)

an infinite amount

d)

no actual digits

4.

The most accurate value of Pi is currently over sixty two trillion digits. Which of these would be correct?

a)

Over 62,000,000,000,000 digits

b)

Over 62,000,000,000,000,000 digits

c)

Over 62,000,000,000 digits

d)

Over 62,000,000 digits

5.

Which of the following is Pi used to find?

a)

Centre of a circle

b)

angle of a circle

c)

tangent of a circle

d)

circumference of a circle

6.

What are the first 8 digits of Pi?

a)

3.1415926

b)

3.1426870

c)

3.1301269

d)

3.2045761

7.

Pi is named after a letter of which alphabet?

a)

Egyptian

b)

Greek

c)

English

d)

Chinese

8.

What famous scientist was born on Pi Day in 1879?

a)

Archimedes

b)

Einstein

c)

Galileo

d)

Newton

9.

If you multiply Pi by the square of the radius of a circle, what do you get?

a)

The circle's diameter

b)

The circle's area

c)

The circle's circumference

d)

The circle's radius

10.

Rajveer Meena from India holds the current world record for reciting the most decimal places of Pi memorised. Rajveer wore a blindfold throughout the entire recall which took nearly 10 hours. The number of digits recited was...?

a)

5,000

b)

70,000

c)

125,000

d)

500,000