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20190530 與平行線有關的角
Author:
Hui Sir
GeoGebra
New Resources
第八周作业
兩組對邊相等和有直角的四邊形
四邊形的特性
画直线等分三角形的面积
四邉形 (四年級) 教師版
Discover Resources
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Travelling Waves
-(√3/2)³ ≤ sinα sinβ sinγ ≤ (√3/2)³
圓錐
球体的截面
Discover Topics
Statistical Characteristics
Diagrams
Cuboid
Integers
Natural Numbers