Central and Circumscribed Angle

Drag circumscribed angle F to see how it affects the central angle CAD.

1. What relationship do you notice between the circumscribed angle F and the central angle CAD? Look for a pattern and be specific.

2. If [math]\angle CAD[/math] = [math]102.5^\circ[/math], what is the measure of [math]\angle F[/math]?

[math]51.25^\circ[/math] [math]77.5^\circ[/math] [math]205^\circ[/math] [math]257.5^\circ[/math] [math]102.5^\circ[/math]

Information: Central and Circumscribed Angle