Pi Day

Front

What is Pi (π)?

Back

Pi (π) is a mathematical constant representing the ratio of a circle's circumference to its diameter, approximately equal to 3.14.

Front

Is Pi (π) a rational number?

Back

No, Pi (π) is an irrational number, meaning it cannot be expressed as a fraction.

Front

What day is celebrated as Pi Day?

Back

Pi Day is celebrated on March 14 (3/14) because the date represents the first three digits of Pi (3.14).

Front

How many digits does Pi (π) have?

Back

Pi (π) has infinitely many digits and does not terminate or repeat.

Front

Can you find a phone number in the digits of Pi (π)?

Back

Yes, you can find sequences of numbers, like a phone number, within the digits of Pi (π), but it may not include the area code.

Front

What does it mean that Pi (π) is irrational?

Back

It means that the digits of Pi (π) do not repeat in any pattern and continue infinitely.

Front

What is the approximate value of Pi (π)?

Back

The approximate value of Pi (π) is 3.14.

Front

What is the formula for the circumference of a circle using Pi (π)?

Back

The circumference (C) of a circle is calculated using the formula C = 2πr, where r is the radius.

Front

What is the formula for the area of a circle using Pi (π)?

Back

The area (A) of a circle is calculated using the formula A = πr², where r is the radius.

Front

What is the significance of Pi (π) in mathematics?

Back

Pi (π) is crucial in geometry, trigonometry, and calculus, especially in calculations involving circles.