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Review of A4 in parallel

The production of The A4 (DIN A) Parallelepiped was described in my previous Instructable: https: //www.instructables.com/id/The-A4-Parallelep …. In it I showed how a particularly proportioned Parallelepiped is embedded in geometry for a single sheet of A4 paper, whose proportions are approximately …
By: Studio 20bis

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