File:Pythag anim.gif
Pythag_anim.gif (200 × 200 pixels, file size: 64 KB, MIME type: image/gif, looped, 31 frames, 6.8 s)
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DescriptionPythag anim.gif |
English: Animation of a proof of Pythagoras' theorem, showing how by rearranging triangles the areas a2 + b2 and c2 can be shown to be the same. The area of the outer square never changes, and the total area of the four right triangles is the same at both the beginning and the end, therefore the black area at the beginning, a2 + b2, must equal the black area at the end, c2. The angle of the triangles is arbitrary, therefore this works as a general proof. To be more explicit...
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Source | Own work |
Author | JohnBlackburne |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:36, 9 February 2012 | 200 × 200 (64 KB) | Tdadamemd (talk | contribs) | Four minor tweaks: 1) Reverse loop added to appear continuous instead of staggered, 2) Whole image rotated so that the letters are read in the same sequence that the theorem is typically stated, 3) Dashed line added to explicitly identify the 'a' and 'b' | |
00:05, 8 November 2010 | 200 × 200 (32 KB) | JohnBlackburne (talk | contribs) | {{Information |Description={{en|1=Animation of a proof of Pythagoras's theorem, showing how by rearranging triangles the areas c<sup>2</sup> and a<sup>2</sup> + b<sup>2</sup> can be shown to be the same}} |Source={{own}} |Author=[[User:JohnBlackburne|John |
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