The Earth Cable Conundrum
Geometry
Level
2
You have a cable that will reach around the circumference of the earth (+/- 40,000 km). If you put poles of 1 meter high around the world and lay the cable on these poles, how much longer will the cable need to be? (Answer in meters)
The answer is 6.28.
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The length increases by 6.28 meters irrespective of circumference when radius is increased by 1m