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GeoGebra
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圓的基本性質
第八周作业
龙形曲线-分形龙
双心四边形
平行線的判定
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Quiz on Factorization of Quadratic Polynomials (Cross Method) 因式分解一元二次多項式(十字相乘法)：測驗
TESTAERE
三角柱(可側轉、上下轉)
千分位分數
等截距和直線包絡拋物線
Discover Topics
Quadratic Functions
LCM and GCD
Trapezoid
Rhombus
Cuboid