six-square

adj

adj

hexagonal

If the Earth were six-square, the shadow would be six-square in the eclipse of the moon.1711, Johannes Buno, Four diagrams of Solar eclipses^(https://commons.wikimedia.org/wiki/File:Four_diagrams_of_Solar_eclipses_(1711)_by_Johannes_Buno._Original_from_Library_of_Congress._Digitally_enhanced_by_rawpixel._(50623610866).jpg):

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