In the figure below, angle [i]BAC [/i]is an inscribed angle and angle [i]BOC [/i]is the central angle of circle [i]O[/i]. Both angles are subtended by the same arc. Make a conjecture about these two angles.

Check the [i]Show/Hide Angle Measures[/i] check box and move any of the points. Is your conjecture always correct? Prove your conjecture.