『円の不思議』
[url]http://hamaguri.sakura.ne.jp/en1.html[/url]
『円周角の定理の拡張のしかた』
[url]http://hamaguri.sakura.ne.jp/ensyukakukakutyo.html[/url]
- Target Group (Age)
- 3 – 19+
- Language
- Japanese / 日本語
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