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固定周界的長方形的面積變化(周界是200厘米)
Author:
李寶玲
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
四邉形 (四年級) 教師版
三位數除以一位數(一)
兩組對邊相等和有直角的四邊形
柱體建築師
錐體建築師
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Question of the shelter
三角函数的副本
函数作图工具的副本
求切线方程(改进)
加减法练习
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Subtraction
Sine
Statistical Characteristics
Numbers
General Quadrilateral