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Image: Tetrahedrons cannot fill space.

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Description: Five tetrahedrons are laid flat on a plane plane, with the highest 3-dimensional points marked as 1, 2, 3, 4, and five. The points are then attached to eachother and a thin volume of empty space becomes obvious, where no tetrahedron of the same size can fit. However, the length of each tetrahedron edge to the distance of the space between the vertices (this is "A" in the above figure, when folded) reveals a ratio of 9. Created with Solid Works.
Title: Tetrahedrons cannot fill space.
Credit: Own work
Author: HHDDTT
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes

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