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比較角的大小
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lkkbmaths teachers 檔案儲存用
GeoGebra
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兩組對邊相等的四邊形
兩位數除以一位數(一)
第八周作业
算柱 (兩位數)
【案例】2018年全国1卷理科12题
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電子幾何條
垂直2
多邊形陣列
二元线性规划的图解法(习题5)
弦的垂直線何時平分弦活動?
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Area
Derivative
Percentages
Ratios
Orthocenter