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"20 N" is the ship's latitude. That tells you that the ship is somewhere

on a circle around the Earth that crosses the Atlantic Ocean, Africa, the

Red Sea, Saudi Arabia, the Arabian Sea, India, the Bay of Bengal, southeast

Asia, the South China Sea, the Pacific Ocean, the Big Island of Hawaii, Mexico,

the Gulf of Mexico, and the Caribbean Sea. You don't know WHERE the ship

is on that circle until they tell you their longitude. If you only know that they're

at 20 N, then there's no way to calculate their longitude.

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11y ago

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