# Mathematics - Geometry

The equatorial radius of the earth is approximately 3960 mL. Suppose that a wire is wrapped tightly around the earth at the equator. Approximately how much must this wire be lengthened if it is to be strung all the way around the earth on poles 10 ft above ground?

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#### Solution Preview

10 feet = 10 x 0.00019 miles = 0.0019 miles

Length of the wire required when it is tightly ...

#### Solution Summary

This solution contains step-by-step calculations to determine how long a wire must be to be strung all the way around the earth poles raised above the ground.

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