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Uploaded by orchiming on Dec 31, 2009
GeoGebra file: http://www.hkedcity.net/ihouse/emb-anthonyor/circle-area.htmlNew GeoGebra 4 version:English: http://www.geogebratube.org/material/show/id/279中文版: http://www.geogebratube.org/material/show/id/550
Education
Standard YouTube License
Sadly this link seems to be broken now. It is was a great tool for showing the proof.
MariaJennyPugsley 1 month ago
@MariaJennyPugsley
If the first link doesn't work, try the second (or the third for Chinese version) link for the new GeoGebra 4 version. You can also download the source file and run it directly in GeoGebra 4 (a freeware).
orchiming 1 month ago
It looks very nice and shows clearly what teachers or students can do with the applet.
msaleemac 2 years ago
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Sadly this link seems to be broken now. It is was a great tool for showing the proof.
MariaJennyPugsley 1 month ago
@MariaJennyPugsley
If the first link doesn't work, try the second (or the third for Chinese version) link for the new GeoGebra 4 version. You can also download the source file and run it directly in GeoGebra 4 (a freeware).
orchiming 1 month ago