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三角形
Author:
Tina Lin
Topic:
Triangles
GeoGebra
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正方形雪花图案
平行線的判定
比較五件物件的重量
直線的斜率：水平變化 & 鉛垂變化
异形操场
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尺規作圖找有理數點(以3分之5為例)
對數函數的內插法
拋體運動
第7题
圓內接四邊形的圓周角
Discover Topics
Limits
Vectors 2D (Two-Dimensional)
General Quadrilateral
Tree Diagrams
Diagrams