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毕氏螺线
Author:
林峰
GeoGebra
New Resources
双心四边形
异形操场
第八周作业1
三角函数 的副本
活动三：应用性质
Discover Resources
軌跡,摺紙,滾動,實驗觀察,曲線
旋轉對稱_1_李樂雯
三角形重心軌跡(動點在三圓上)
gjc096a19 平行四邊形內截兩扇形
自學材料_兩位數乘兩位數
Discover Topics
Congruence
Pythagoras or Pythagorean Theorem
Quadratic Functions
Similar Triangles
Parallelogram