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圖四的副本
Author:
LT14888061
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩位數加法
判斷球體
找出對稱軸
異分母分數減法
兩位數除以一位數（二）
Discover Resources
挑战中考压轴题
conjugate
用正多邊形面積逼進圓周率
內外切圓性質
長方體透視圖(三頂點組成三角形)
Discover Topics
Cone
Quadratic Equations
Trigonometric Functions
Similarity Transformation or Similarity
Orthocenter