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圓錐截痕
Author:
洪宜慧
GeoGebra
New Resources
判斷球體
拼砌四邊形
近似值：有效數字
兩組對邊相等的四邊形
Earth with coastline
Discover Resources
Copy of gjc091b18 圓的割線
rotational symmetry_2
圓例9
拋物線2-焦點法
題6
Discover Topics
Hypothesis Testing
Sphere
Ratios
Scatter Plot
Diagrams