Răspuns :
4F/5 = 4L/3 = M = k
F= 5k/4
L = 3k/4
M = k
F+M+L=180*
5k/4 + 3k/4 + k = 180*
2k + k = 180*
3k = 180*
k = 60
F = 75*
L = 45*
M = 60*
F= 5k/4
L = 3k/4
M = k
F+M+L=180*
5k/4 + 3k/4 + k = 180*
2k + k = 180*
3k = 180*
k = 60
F = 75*
L = 45*
M = 60*