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Posted by on Monday, March 8, 2010 at 10:11pm.

a circular track runs around a park. there is a sidewalk that connects two points on the track that runs through the center of the park. the sidewalk is 100 ft. long. How long is the track to the nearest half foot?

  • Math - , Monday, March 8, 2010 at 10:19pm

    The sidewalk is the diameter of the track.

    Use the formula for the circumference of a circle:

    C = pi * d

    C = 3.14 * 100
    C = ?

  • Math - , Monday, March 8, 2010 at 10:19pm

    mmmh, isn't the sidewalk a diameter of the circle?
    And isn't the the perimeter of a circle
    pi(diameter) ?

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