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廣義三角：sin, cos
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩位數除以一位數（一）
兩組對邊相等的四邊形
兩位數加法
找出對稱軸
Discover Resources
腳踏車
不規則形陰影作圖2
[S3] a GeoGebra file created by a pre-service teacher Peter (pseudonym)
Ex5C#5
三角形面積(由面積求高)
Discover Topics
Confidence Interval
Solids or 3D Shapes
Arithmetic Operations
Conic Sections
Limits