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梯形
Author:
Yip Chi Wai
Topic:
Trapezoid
GeoGebra
New Resources
畫出對稱圖形
第八周作业
柱體建築師
拼砌四邊形
兩位數加法
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[問題] G1, G2, G3 為△ACG, △ABG, △BCG 的重心
Book
數學傳播39卷4期, 平面幾何公式思考
gitfh 複合圖形-正四角柱中挖圓柱
Copy of Multiplication of polynomials 2 (多項式的乘法 2)
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Subtraction
Terms
Geometric Mean
General Quadrilateral
Complex Numbers