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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
畫出對稱圖形
拼砌四邊形
兩位數除以一位數（一）
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
Discover Resources
Spiral Polyskelion
拋物線定義
五角星
圓冪性質
地球儀
Discover Topics
Difference and Slope
Mode
Trigonometric Functions
Cube
Median Value