Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2vW/ Traduzione in Italiano del video Basic Trigonometry II http://www.youtube.com/watch?feature=player_embedded&v=G-T_6hCdMQc http://www.khanacademy.org/video/basic-trigonometry-ii?playlist=Trigonometry Help us caption & translate this video! http://amara.org/v/B2vW/