Réponses

  • Utilisateur Brainly
2014-05-27T16:55:50+02:00
2) 180°-(90°+29,5°) = 60,5°

3) Hi :
cos I = GI/HI
cos60,5 = 6/HI
0,49 = 6/HI
HI = 6/0,49 = 12,25cm