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三角形的三个旁切圆.许兴华数学
Author:
许兴华数学
Topic:
Circle
,
Triangles
GeoGebra
New Resources
第三周作业效果演示
三角函数 的副本
圓的基本性質
双心四边形
异形操场
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How to reconstruct a quadrilateral farm to a triangular one with the same area?
動國旗
轉彎的箭頭
圓周公式應用題1 的複本
三角形分形
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Quadratic Functions
Tangent Function
Pythagoras or Pythagorean Theorem
Tree Diagrams
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