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2014-09-12T12:39:58+03:00
Fie a, b, c ,d - unghiuri
a+b+c+d=360
a=11k
b=15k
c=21k
d=25k

11k+15k+21k+25k=360
72k=360
k=360/72
k=5

a=11*5
a=55

b=15*5
b=75

c=21*5
c=105

d=25*5
d=125
2 5 2