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五上:三角形的面积公式推导、三角形的底和高
Author:
钟秀群
,
Anthony OR 柯志明
Topic:
Area
,
Triangles
三角形的面積
GeoGebra
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柯志明 香港 GeoGebra 學院
New Resources
球體建築師
兩組對邊相等和有直角的四邊形
找出對稱軸
【案例】2018年全国1卷理科12题
三位數除以一位數(一)
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伊斯蘭窗花
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