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題一
Author:
Chloe
,
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
近似值：有效數字
第八周作业
四邊形的特性
Discover Resources
比較角的大小一
金剛合體！！
基础知识
橢圓規Ellipsograph of Parallelogram
刘校安排（1）
Discover Topics
Optimization Problems
Similar Triangles
Vectors 2D (Two-Dimensional)
Complex Numbers
Difference and Slope