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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
直角坐標平面上的旋轉變換
拼砌四邊形
異分母分數減法
錐體建築師
三位數除以一位數（二）
Discover Resources
檢驗區
Add and subtract (binary)
Quiz on Rectangular Coordinates (2) 直角坐標測驗2
Is this a prism 2
三角形
Discover Topics
Division
Fractions
Symmetry
Solids or 3D Shapes
Statistical Characteristics