The Origin of Pi

What is π?

• The ratio of area divided by radius.

• The ratio of circumference divided by diameter.

• The ratio of circumference divided by the square of the radius.

• The ratio of area divided by diameter.

What type of number is π?

• Irrational Number

• Rational Number

When the concept of π is firstly known to exist?

• 2000 years ago.

• 3000 years ago.

• 4000 years ago.

• 5000 years ago.

In what year mathematicians began using the greek letter of π?

• 1706

• 1737

• 1400

• 4000 B.C.

Leonhard Euler introduced the greek letter π to be used in mathematics.

• True

• False

Which one is the first 10 decimal numbers of π?

• 3.1415926545

• 3.1415826535

• 3.1415926435

• 3.1415926535

Which equation is correct to find the length of a?

Which equation is correct to find the length of b?

Which equation is correct to find the length of S2?

In where decimal position does 31415926535 pattern occurs again?

• The 176450 number until the 176455 number

• The 176451 number until the 176456 number

• The 176452 number until the 176457 number

• The 176453 number until the 176458 number