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The Number Pi [math](pi)[/math] (Grade 8)

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The Number Pi [math](pi)[/math]

1. 
[math]pi[/math] is a real number.
  1. True
  2. False
 
2. 
[math]pi[/math] is a rational number.
  1. True
  2. False
3. 
[math]pi >= 4[/math]
  1. True
  2. False
 
4. 
[math]pi<3[/math]
  1. True
  2. False
5. 
Which of the following is the best estimation of the value of [math]pi[/math]?
  1. 3
  2. 4
  3. 5
  4. 6
 
6. 
Pi is the ratio of a circle's                         to its                        .
  1. area; diameter
  2. radius; diameter
  3. area; circumference
  4. circumference; diameter
7. 
Pi [math](pi)[/math] is used when calculating which of the following?
  1. area of a circle
  2. volume of a sphere
  3. volume of a cylinder
  4. volume of a cone
  5. all of the above
 
8. 
Pi [math](pi)[/math] has a(n)                   number of decimal digits and these decimal digits                   repeating pattern.
  1. finite; have no
  2. finite; have a
  3. infinite; have no
  4. infinite; have a
9. 
Which of the following fractions most closely approximates the value of [math]pi[/math]?
  1. [math]7/21[/math]
  2. [math]7/22[/math]
  3. [math]21/7[/math]
  4. [math]22/7[/math]
 
10. 
Pi day is celebrated on
  1. February 13.
  2. February 14.
  3. March 13.
  4. March 14.
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