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Old 11-03-2021, 01:45 PM   #760 (permalink)
freebeard
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The icosahedral faces form a pentagon where they meet. The face center has one or more hexagons; more approximates a compound curve.

A low arched dome (less than 3/8ths) would only have one pentagon at the zenith. And that should be open.

Containers weren't designed to be repurposed. I suppose you could sink a container into the ground, cut the top off and fill it with water.
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