Răspunsuri

2014-10-01T21:13:16+03:00
A/1=b/2=c/3=d/4=k
a=k
b=2k
c=3k
d=4k
a+b+c+d=360*
k+2k+3k+4k=360
10k=360
k=36
∧A=36
∧B=72
∧C=108
∧D=144
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adunand=360