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DSE Circle-ACT03B Relationship Between Chords and Angles at Centre
Author:
MrWat@SFCC(HK)
Topic:
Angles
,
Circle
GeoGebra
1. You can change the lengths of chords AB and CD by moving points A, B, C and D. 2. Observe the changes of the sizes of the angles at centre. Draw a conclusion if you can.
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