[list=1][*][color=#0000ff][i][b]https://mathix.org/cours_interactif/index.php?l=fr&n=3e&c=Pythagore#:~:text=Th%C3%A9or%C3%A8me%20de%20Pythagore%20%3A,alors%20BC%C2%B2%3DAC%C2%B2%2BBA%C2%B2[/b][/i][/color][/*][*][color=#0000ff][i][b]https://www.nagwa.com/fr/videos/170148949395/[br][/b][/i][/color][/*][*][color=#0000ff][i][b]https://www.alloschool.com/course/mathematiques-4eme#![br][/b][/i][/color][/*][*][color=#0000ff][i][b]https://learningapps.org/[br][/b][/i][/color][/*][*][i][b][br][/b][/i][/*][/list]