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GeoGebraGeoGebra Classroom

Inscribed Angle Theorem

Topic:
Angles, Circle
In the figure below, angle BAC is an inscribed angle and angle BOC is the central angle of circle O. Both angles are subtended by the same arc. Make a conjecture about these two angles.
Check the Show/Hide Angle Measures check box and move any of the points. Is your conjecture always correct? Prove your conjecture.