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根據百分率找數量（一）: 例4的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
錐體建築師
兩位數加法
四邊形的特性
球体的体积推导（优化版）
【案例】圆柱体内放置一个大球六个小球
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題八
堆垛
計算
榔头和它的展开图
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Matrices
Arithmetic Operations
Similarity Transformation or Similarity
Fractal Geometry
Secant Line or Secant