Saturday, March 1, 2008

College Board ? of the Day

Read the following SAT test question, then click on a button to select your answer.


If the diameter of a bicycle wheel is 0.5 meter, how many meters has the center of the wheel traveled when the wheel has made 3 complete revolutions along a straight road?



  1. 3pi over 2

  2. 3pi

  3. 12pi

  4. 25pi over 2

  5. 25pi






Hint
Use the diameter of the wheel to find its circumference. When the wheel makes 1 complete revolution, the center travels a distance equal to the circumference.

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