To measure diameter of a circle, measure the length from one point to the exact opposite point. That number is called diameter. Half of that measurement is called Radius.
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1. Measure the car wheel, including the tire. Start by getting the tire pumped up at the local gas station. This will help reduce the flattening at the bottom of the tire, which could
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a diameter is the whole measurement of a circle like if u where to find out the whole measurement of a ball 4 it 2 be a diameter it would have to measure the whole ball
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follow the link http://www.nasa.gov/pdf/462953main_RW6M…
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