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Copy of (original) Area of Circles
Author:
Joseph Kim
,
Anthony OR 柯志明
What is the area of a circle? Explore with the following applet.
GeoGebra
Anthony Or, GeoGebra Institute of Hong Kong.
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Right Triangle Trig Ratios: sin, cos, tan
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Position and Velocity Vector
z`]]
bewijs stelling van Pythagoras
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TrigTriangle 2
Untitled
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