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GeoGebra
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Outline
Circle Theorems
Circle Theorems
Circle Theorems
Author:
gcrtaylor
Topic:
Angles
,
Circle
Circle Theorems
Each theorem presented so generalisations can be made
Angle at centre is twice angle at circumference
Circle Theorem - Angle at the circumference from diameter
Tangent to Radius
Angles from same chord are equal
Cyclic Quadrilateral
Next
Angle at centre is twice angle at circumference
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