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題4

Author:Anthony OR 柯志明

Topic:Congruence, Triangles

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三位數除以一位數（一）
畫出對稱圖形
兩組對邊相等的四邊形
近似值：有效數字
四邉形 (四年級) 教師版

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掃描不等式圖形
繪製線型函數圖形
平行線 (同位角 - 4對)
選擇合適的「中間人」
三角形三內角和

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LCM and GCD
Intersection
Angles
Conic Sections
Geometric Distribution

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