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椭圆的光学性质
Author:
孟宝兴
GeoGebra
New Resources
錐體建築師
兩位數除以一位數(一)
三位數除以一位數(一)
柱體建築師
兩組對邊相等和有直角的四邊形
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畫三角形 題2a
立體截面
y=sinx的伸縮平移
鉛筆畫圓
周长相等,正方形,长方形和正三角形,圆面积大小比较
Discover Topics
Similar Triangles
Tangent Line or Tangent
Correlation
Pie Chart or Circle Chart
Equilateral Triangles