Which of the following is Pi NOT also referred to as?

• Circular Constant
• Archimedes' Constant
• Einstein's Code
• Ludolph's Number

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CCSS.HSG.GMD.A.1

3.14 is what?

• a number

• pi

• radius

• diameter

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What is the approximate value of pi?

• No one knows

• 3.14

• 1

• 6.28

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What is π ? (Best Choice)

• The ratio of the circumference of any circle to its diameter.

• Exactly 3.14

• Exactly 3.1415

• Exactly 3.141593

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Circumference is about 3 times the diameter.

• True

• False

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π = ?

• 3

• 314

• 3.14

• 34

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Why is π considered an irrational number and how does it affect the calculation of the circumference of a circle?

• π is considered irrational because it can be expressed as a simple fraction

• π does not affect the calculation of the circumference of a circle

• π is not used in the formula C = 2πr or C=πd.

• π is considered irrational because it cannot be expressed as a simple fraction

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Pi is the relationship between a circle's diameter and its circumference. This relationship is always the same, and it's always pi. Pi is an irrational number, which means its decimals go on forever, but it is approximately _______.

• 7.23

• 100

• 3.14

• 1

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What number is pi?

• 1.41

• 2.00

• 3.14

• 5.14

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In September, 1999, the value of Pi was calculated to a record number of decimal places. How many?

•  206 million
• zero
• 206 billion
• 206 trillion

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