Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2vS/ Esercizi: http://www.khanacademy.org/exercise/inscribed_angles_1 Traduzione in Italiano del video Inscribed and Central Angles http://www.youtube.com/watch?feature=player_embedded&v=MyzGVbCHh5M http://www.khanacademy.org/video/inscribed-and-central-angles?playlist=Geometry Help us caption & translate this video! http://amara.org/v/B2vS/