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conjugate
Author:
sealion1215
GeoGebra
New Resources
撒针估算面积实验
圓的基本性質
百分數及其應用
活动三：应用性质
盈利與虧蝕
Discover Resources
Trigonometry
認識GeoGebra--相似三角形
Copy of Fill a special area
圓外切四邊形
中國剩餘定理 (Chinese Remainder Theorem)
Discover Topics
Pyramid
Orthocenter
Parabola
Vectors
Cuboid