How to Make a Pyramid From Cardboard and a Perfect Circle
by GREENPOWERSCIENCE in Workshop > Science
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How to Make a Pyramid From Cardboard and a Perfect Circle
Published on Apr 15, 2012 by GREENPOWERSCIENCE
Solar Collector DIY Tetrahedron.
A tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex.
Solar Collector DIY Tetrahedron.
A tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex.