Math

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?

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asked by Chris
  1. 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 = ?

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    posted by Ms. Sue
  2. 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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    posted by Reiny

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