Constructing a Square Pyramid without Gluing
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This Demonstration shows a net with tabs, from which a square pyramid can be constructed in five steps without gluing.
Contributed by: Izidor Hafner (December 2016)
Open content licensed under CC BY-NC-SA
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"Constructing a Square Pyramid without Gluing"
http://demonstrations.wolfram.com/ConstructingASquarePyramidWithoutGluing/
Wolfram Demonstrations Project
Published: December 29 2016