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固定周界長方形的面積變化（二）
Author:
Anthony OR 柯志明
,
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
New Resources
美國國旗 (Claude 版)
兩組對邊相等和有直角的四邊形
近似值：有效數字
sanjiaohanshu
AI 訓練教室
Discover Resources
waaachen
explore
Ｍy GGC-1
拋物線2-焦點法
Addition and Subtraction of Directed Numbers (1)
Discover Topics
Arithmetic Mean
Line Segment
Rhombus
LCM and GCD
Curve Sketching