File:Double diminished icosahedron.png
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Size of this preview: 636 × 599 pixels. Other resolutions: 255 × 240 pixels | 509 × 480 pixels | 973 × 917 pixels.
Original file (973 × 917 pixels, file size: 159 KB, MIME type: image/png)
Summary
| Description |
English: Regular icosahedron reduced by 1 edge contraction: merging 1 edge into 1 vertex. Here, this contraction: ● Removes: • 1 vertex, • 3 edges and 2 adjacent faces incident with this vertex. ● Makes 2 adjacent edges collinear, and places 6 faces in a folded regular hexagon, i.e. in 2 adjacent congruent triamonds. (A triamond is made of 3 coplanar adjacent congruent equilateral triangles.) ● Distorts the circumscribed sphere of the original vertices. |
| Date | |
| Source | Own work |
| Author | Tomruen |
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I, the copyright holder of this work, hereby publish it under the following license:
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:51, 3 August 2013 | | 973 × 917 (159 KB) | wikimediacommons>Tomruen | remake |
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