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梯形的高
Author:
鍾文欽
Topic:
Trapezoid
GeoGebra
New Resources
三位數除以一位數（二）
直角坐標平面上的旋轉變換
近似值：有效數字
找出對稱軸
第八周作业
Discover Resources
錐體建築師 5
Expansion & Factorization 展開與因式分解
反演(Inversion)
Gazing Cow Problem (a)
錯角---垂直平行綫
Discover Topics
Hypothesis Testing
Straight Lines
Continuity
Logarithm
Similar Triangles