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Copy of 平行四邊形
Author:
CHENG Kwan Yin
,
Hin Chan
Topic:
Parallelogram
平行四邊形的高和底
GeoGebra
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兩位數除以一位數（一）
判斷球體
球體建築師
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
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slide base
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Discover Topics
Derivative
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