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固定面積的圖形周界變化
Author:
phcheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
錐體建築師
異分母分數減法
算柱 (兩位數)
三位數除以一位數（一）
四邊形的特性
Discover Resources
圓內接四邊形 ABCD ...，求 sinθ=?
Properties of a Rhombus
孔明棋
推移（x 方向）的副本
圆锥圆柱圆台的侧面展开图(及侧面上两点的最近曲线)
Discover Topics
Straight Lines
Volume
Function Graph
Angles
Random Experiments