Asked by Chris

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?
Answered by Ms. Sue
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 = ?



Answered by Reiny
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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