Răspuns :
fie unghiurile a,b,si c
a/2 = b/3 = c/5 = > k
a = 2k
b = 3k
c = 5k
2k+ 3k+ 5k = 180
10k = 180
k = 180 : 10 = 18
a = 36 grade
b = 54 grade
c = 90 grade
a/2 = b/3 = c/5 = > k
a = 2k
b = 3k
c = 5k
2k+ 3k+ 5k = 180
10k = 180
k = 180 : 10 = 18
a = 36 grade
b = 54 grade
c = 90 grade