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固定周界長方形的面積變化（三）
Author:
GeoGebra Institute of Hong Kong,
Anthony OR 柯志明
Discover Resources
Law of Sines
Reflection : 8.GA.2
משיק לפונקציה T3
Trigonometry
Luminous Intensity vs. Time
New Resources
Example QF.2.1
Student Explorer WMS395
Reflect Points Y Axis
PENTAGON
Incenter
