Image: R2f
R2f.gif (52 × 66 pixels, file size: 332 bytes, MIME type: image/gif)
Description: an image that shows the symmetry r2f
Title: R2f
Credit: https://www.jaapsch.net/puzzles/helicopter.htm
Author: Jaap Scherphuis
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
The following page links to this image:
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