任意三角形可以組合成一個平行四邊形。所以任意三角形的面積等於平行四邊形的一半。
進一步的要讓學生知道三角形的高等於平行四邊形的高。
- Target Group (Age)
- 11 – 14
- Language
- Chinese Traditional / 繁體中文
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