Learning About Pi and Pi Day

The relationship between the symbol π and the word Pi is:

• π is a mathematical constant and Pi is its name.

• π is a Greek letter and Pi is a mathematical operation.

• π is a variable and Pi is a unit of measurement.

• π is a number and Pi is a type of food.

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The value of Pi comes from what ratio?

• Circumference to diameter of a circle

• Diameter to radius of a circle

• Area to radius of a circle

• Radius to circumference of a circle

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Pi is called a mathematical constant because:

• it is a variable that changes with different circles.

• it is a fixed value that represents the ratio of a circle's circumference to its diameter.

• it is only used in geometry and not in other branches of mathematics.

• it is a number that can be expressed as a simple fraction.

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Pi continues infinitely because:

• it is a rational number.

• it is an irrational number.

• it is a whole number.

• it is a prime number.

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Why is Pi an irrational number?

• Because it cannot be expressed as a fraction of two integers

• Because it is a repeating decimal

• Because it is a whole number

• Because it is a negative number

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How many digits of Pi are known?

• 10 trillion

• 50 billion

• 100 million

• 1 trillion

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Which mathematicians first used the symbol π?

• Archimedes

• Leonhard Euler

• William Jones

• Isaac Newton

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Pi Day is celebrated on March 14 because:

• it is the birthday of a famous mathematician.

• it represents the first three digits of Pi (3.14).

• it is the day when Pi was discovered.

• it is a national holiday in the USA.

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For how many years has Pi Day been celebrated?

• 10 years

• 20 years

• 30 years

• 40 years

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March 14 is also whose birthday?

• Albert Einstein

• Isaac Newton

• Galileo Galilei

• Nikola Tesla

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