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opg 11 (a) (b) s. 86-87
作者：
Marius Rasmussen
GeoGebra
最新資源
Loyd's Two-Greek-Crosses-to-a-Square Dissection
WC 2018
Conditions for Parallel Lines
Ellipse and Equation
Erdős's problem #503, n=3
探索資源
Midsegment Investigation
The REAL incenter
Automated Reasoning Tools in GeoGebra
Pythagoras Theorem
missile fitting
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梯形
直角三角形
立方（體）
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