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定周长的正多边形面积变化规律
Author:
张英华
Topic:
Area
GeoGebra
New Resources
兩組對邊相等的四邊形
四邊形的特性
兩位數除以一位數（一）
判斷球體
球体的体积推导
Discover Resources
YIPPUIMEIgeogebra
餘弦公式_1
Copy of 三角形的面積
congruent triangle_provided by Mr Yeung Kar Chun
兩函數間面積的副本
Discover Topics
Plane Figures or Shapes
Ellipse
Diagrams
Median Line
Dilation