Răspuns :
a + b + c + d = 360°
a = 3k, b = 4k, c = 5k, d = 3k
3k + 4k + 5k + 3k = 360°
15k = 360°
k = 24°
a = 72°
b = 96°
c = 120°
d = 72°
a + b + c + d = 360°
a = 3k, b = 4k, c = 5k, d = 3k
3k + 4k + 5k + 3k = 360°
15k = 360°
k = 24°
a = 72°
b = 96°
c = 120°
d = 72°