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P53_3c
Author:
lkkbmaths teachers 檔案儲存用
觀察移動綠色的線段後,該圖形的改變。
GeoGebra
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判斷球體
錐體建築師
兩組對邊相等和有直角的四邊形
四邊形的特性
球体的体积推导(优化版)
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商高定理\水
優良作品2(孟倫)
正弦公式(證明)
Similar triangles
三角碎形
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Statistical Characteristics
Natural Numbers
Addition
Arithmetic
Subtraction