[b]（2012年3月23日更新）[/b]
示範如何以量角器量度角。
(English version: http://www.geogebratube.org/material/show/id/2461 )
- Resource Type
-
Activity
- Tags
-
- Target Group (Age)
- 11 – 14
- Language
- Chinese Traditional / 繁體中文
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