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Mathematics 8 Online
OpenStudy (anonymous):

An invention of the Renaissance that helped sailors to accurately maneuver their ships is: A.) the astrolabe B.) the sundial C.) the anchor D.) the wheel

OpenStudy (whpalmer4):

Not C or D obviously. Not really A or B as both were invented in ancient times, though if they meant the mariner's astrolabe the Renaissance would be the right time for invention. Also, it aided navigation, not maneuvering, but whatever.

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