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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）
拼砌四邊形
四邊形的特性
找出對稱軸
Discover Resources
幾何原理
Ex5D#7
圓與切線
拋物線4-平行四邊形法
球面截痕
Discover Topics
Definite Integral
Poisson Distribution
Differential Equation
Standard Deviation
Angles