Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2wC/ Esercizi: http://www.khanacademy.org/exercise/pythagorean_theorem_2 Traduzione in Italiano del video 30-60-90 Triangles II http://www.youtube.com/watch?feature=player_embedded&v=3mLUJSoh6i0 http://www.khanacademy.org/video/30-60-90-triangles-ii?playlist=Geometry Help us caption & translate this video! http://amara.org/v/B2wC/