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相同圖形的拼砌（有兩組平行線的四邊形）
Author:
ho ting chit
GeoGebra
New Resources
sanjiaohanshu
兩組對邊相等和有直角的四邊形
找出對稱軸
四邉形 (四年級) 教師版
【案例】2018年全国1卷理科12题
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拼出三角形
優良作品7
一元二次方程式-應用問題(兩圓相切-2)
二維
〃Two〃
Discover Topics
Subtraction
Binomial Distribution
Bar Chart or Bar Graph
Tangent Function
Natural Numbers