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Circle theorems - Cyclic Quadrilaterals
作者:
Anthony P
,
GreenMaths
主題:
圓
,
四邊形
Move point A or C. There is no change to the angles. Explain this using a Circle Theorem. Move point B or D are moved. Why do the angles change? Does the opposite angle sum change? Why is this?
GeoGebra
最新資源
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