Puzzling Visual Maths For The Curious Minded #7

Archimedes Laboratory Project

Mental & Perceptual Activities that Enhance Critical and Creative Thinking Skills

Puzzling Visual Maths

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 Cube in a Cube or the Intersecting Tetrahedra A polyhedron compound of two cubes is obtained by allowing two cubes to share opposite polyhedron vertices, and then rotating one a sixth of a turn about the axis that joins the two opposite vertices (see fig. 1 below). As you can see from fig. 2, the two-cube compound is made up of 12 pyramidal modules. Each pyramidal module is composed of two right triangles with ratio 2:1 and one isosceles right triangle. Print the PDF with the paper model (shown in fig. 3) to make your own compound of two cubes. Read more: from MathWorld. Origami Variant David Brill devised an original way to make the compound of two cubes by using modular origami folding technique. You will need 12 square papers, 6 of one color + 6 of another, and a lot of patience to build your polyhedron compound. Instructions: see the video below. Source: origami instructions found in Dave’s book: Brilliant Origami. You can comment and discuss this puzzle on our FaceBook fan page.

 Impossible Folding Puzzles Pliages, découpages & magie MateMagica: Giochi d'ingegno con la matematica

Archimedes Laboratory Project
Mental & Perceptual Activities that Enhance
Critical and Creative Thinking Skills

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