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Area of trapezoid
Author:
jack1012
兩個一樣的梯形如何組成一個平行四邊形
GeoGebra
梯形的高與平行四邊形的高有什麼關係呢? 為什麼? 平行四邊形的底邊與梯形有什麼關係呢??
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盈利與虧蝕
第八周作业1
折扣
直線的斜率:水平變化 & 鉛垂變化
双心四边形
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點光源圖
畫三角形 題2e
Angle between Lateral Faces 2
X and Y.
躲掉1,-1,0的動態文字
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Translation
Indefinite Integral
Ratios
Combinatorics
Matrices