拖拉圓的中心點到通過三角形其中兩個頂點的不同位置，透過觀察這些位置的記號，探究如何繪畫三角形的外接圓。
柯志明
香港 GeoGebra 學院
- Target Group (Age)
- 15 – 18
- Language
- Chinese Traditional / 繁體中文
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