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「相似三角形」任务1的副本
Author:
地心引力
,
gklwong
Topic:
Similar Triangles
任务1
GeoGebra
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判斷球體
四邉形 (四年級) 教師版
兩位數除以一位數（二）
畫出對稱圖形
兩組對邊相等和有直角的四邊形
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test test test
擺線
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周界
斜率乘积为定值（椭圆、双曲线）
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