" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Aplicado al lado de 120:
120² = 80² + 60² - 2 . 80 . 60 . cosα
14400 = 10000 - 9600 cosα
cosα = (10000 - 14400 )/9600 = - 0,448
Luego α = 117°
Por lo tanto el ángulo buscado es 180 - 117 = 63°
Saludos Herminio