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應用圓周率: 題3
Author:
wong wai man
,
Keith Ko
移動右圖中的紅線到左方虛線，就知道它是相等於左圖的哪條線。
GeoGebra
New Resources
柱體建築師
GeoGebra笔记功能体验课件
拼砌四邊形
兩位數加法
異分母分數減法
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阿波羅尼亞圓
Prism and Cylinder 2
軌跡二︰移動點與兩固定點保持相等距離(垂直平分線)
相似三角形
（三）观察物体
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Cuboid
Trigonometric Functions
Linear Programming or Linear Optimization
LCM and GCD
Functions