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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
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
判斷球體
找出對稱軸
【案例】圆柱体内放置一个大球六个小球
Discover Resources
繪圖
三圓外切
S0E01 一次、二次函数的绘制
翰林數學_2下_CH3-4_三角形的外角大於任一內對角
模拟时钟
Discover Topics
Pyramid
Ellipse
Power Functions
Coordinates
Straight Lines