Pi Day Quiz

Why does the celebration of Pi Day officially start at 1:59?

• Because that is the time Einstein was born on March 14, 1879.

• Because the first 6 digits of pi are 3.14159

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What famous person was born on Pi Day?

• Galileo

• Einstein

• Elvis

• Newton

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Pi is the ratio between...

• the circumference and radius

• the radius and diameter

• the diameter and circumference

• the circumference and diameter

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The set of all points equidistant from a fixed point is the definition of...

• an oval

• a square

• a circle

• a target

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The distance around a circle is called...

• perimeter

• diameter

• radius

• circumference

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Pi is an irrational number because....

• it makes no sense

• it can be written as a fraction

• it is a repeating decimal

• it is a decimal that never ends

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Half of the diameter is called the...

• radius

• circumference

• origin

• pi

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The first 6 digits of pi are....

• 3.14190

• 3.14159

• 31.4159

• 3.14590

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Why is 3.14...called pi?

• Because pies are round

• Because a mathematician misspelled it

• Because its symbol is the Greek letter pi

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If the circumference of a circle is 9 cm, the diameter is approximately...

• 3 mm

• 27 cm

• 3 cm

• 3.14 cm

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