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三角形，點上平分面積
Author:
tommy15988713
Topic:
Triangles
三角形，點上平分面積
GeoGebra
New Resources
直角坐標平面上的旋轉變換
畫出對稱圖形
第八周作业
拼砌四邊形
兩組對邊相等的四邊形
Discover Resources
面積與公式
小數（小四下）
立體圖形 KH
tetrahedron_rotation
圖形的周界
勾股定理证明演示--分割股边
Discover Topics
Rhombus
Functions
General Quadrilateral
Trapezoid
Sequences and Series