Răspunsuri

2014-05-08T17:09:27+03:00
P=15.3cm
Notam cu a=prima latura
               b=a doua latura
               c=a treia latura
a+b+c=15.3cm
a=2b
c=(a+b) /2
=> c= (2b+b)/2 => c=3b /2
2b+b+3b/2=15.3
3b+3b/2=15.3    | *2
6b+3b=30.6
9b=30.6
b=3.4cm
a= 2*3.4 => a=6.8cm
c= 3*3.4/2 => c=5.1cm

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