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題 2
Author:
HYHivy
,
GeoGebra Institute of Hong Kong
計算下圖的面積。
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
兩位數加法
GeoGebra笔记功能体验课件
球體建築師
Discover Resources
七巧板奔人3
Add and subtract 2
反演的應用：鞋匠的小刀
球體
三角形n邊形外角和
Discover Topics
Cone
Unit Circle
Pie Chart or Circle Chart
Geometric Transformations
Subtraction