Răspunsuri

2014-06-15T17:38:46+03:00
Notam masurile unghiurilor cu a,b,c,d

a,b,c,d    dp  cu 11;15;21;25

a/11=b/15=c/21=d/25=k

a=11k
b=15k
c=21k
d=25k

11k+15k+21k+25k=360

72k=360
k=5

a=11*5=55
b=15*5=75
c=21*5=105
d=25*5=125

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