16 feet (4.88 meters)
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The diameter of a circle is the measurement across the circle. The most important stipulation here is that the measurement taken must pass through the center of the circle in order
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Softball uses a 16 foot diameter circle for the
http://www.chacha.com/question/whatisthediamete...

1. Measure from one side of the circle directly across to the other side, through the circle's center. If the circle is drawn to scale, this measurement will be the diameter. 2. Multiply
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