PI day

Pi is the ratio of a circle's...

• diameter to its circumference

• area to its diameter

• circumference to its diameter

• radius to the cube of its area

Pi is irrational. This means that...

• it cannot be expressed as a fraction of integers

• it is only divisible by 111

• it has only zeroes to the right of the decimal

• nothing in particular. All numbers are irrational because they have no physical manifestation.

True or false: Pi's digits never repeat.

• TRUE

• FALSE

Which famous brainy fellow was born on Pi Day?

• Isaac Newton

• Albert Einstein

• Johannes Kepler

• Jay Leno

Quick math problem: Circle A is one mile wide. Circle B is two miles wide. Which of the following statements is true:

• Circle B has twice the area of Circle A

• Circle B's area is four times greater than that of Circle A

• Actually, the areas of both are equal. A circle's area is unrelated to width

• Circle B is eight times larger than Circle A

True or false: double the area of a circle and pi, itself, doubles.

• TRUE

• FALSE

As of today, pi has been calculated out to how many digits?

• 100 million

• 1.3 billion

• 349.3 billion

• 10 trillion

The notion of pi has been known since antiquity, but when was the Greek letter pi first used to denote it?

• 1st century AD

• 13th century AD

• 18th century AD

• 20th century AD

Which book implies pi's value with the following passage: "And he made a molten sea, ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it about?"

In 1897, the state of ____________ passed a law stating that pi equaled 16 divided by the square root of 3, or approximately 9.2376.

• Maine

• Kansas

• Indiana

• Utah