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Old Dec 16th 2008, 07:25 AM   #1
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cross-sectional area of a cable

How do we measure cross-sectional area of a cable (obviously circular)?
For example, diameter of a cable as measured from vernier caliper was 19.5 mm. If we apply A = pi(3.14) r2, answer is 298.49 mm square but tag on said cable is showing Area = 10mm square?
Please explain.
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Old Feb 26th 2009, 10:53 PM   #2
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hey budy, ur answer 298.5mm sq is correct
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