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变化的三角形的旁心.许兴华数学
Author:
许兴华数学
Topic:
Geometric Transformations
,
Triangles
GeoGebra
New Resources
找出對稱軸
球体的体积推导（优化版）
異分母分數減法
拼砌四邊形
錐體建築師
Discover Resources
平行四邊形的面積
圓周 (圖形G)
圓錐切球
數學傳播39卷4期, 平面幾何公式思考
两圆上两动点分别以相同的线速度运动时，连线中点的轨迹（绿色花朵）
Discover Topics
Quadratic Functions
Linear Programming or Linear Optimization
Sequences and Series
Random Variables
Intersection