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作者：
gkghataora
GeoGebra
最新資源
Tangent Vector (2)
Combining Random Variables
Steel Chair
apec
Sine and Cosine on the Unit Circle
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Obtuse Angles
Car flashing sculpture
grade 3
Acute, Obtuse and Right Triangles with the Pythagorean Theorem
分數除法 division of fractions (1)
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等腰三角形
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