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The earth isn't a perfect sphere, but if it were its diameter would be about 12,500,000 meters. A $1 bill is 156 mm, or 0.156 meters long, so grab your calculator and:

1. Multiply the diameter by PI to get the circumference

2. Divide by the size of one $1 bill to determine how many are needed.

If you don't have a scientific calculator you may need to shift some decimal points to make the numbers fit.

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16y ago

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