Răspunsuri

2014-08-30T12:00:28+03:00
ΔABC  ≈  ΔMNP

MN/AB= NP/BC= MP/AC=1/3

MN/AB=1/3=k
MN/1= AB/3=k

MN=k
AB=3k

NP=k
BC=3k

MP=k
AC=3k

P ΔMPN= MN+NP+MP=51

k+k+k=51
3k=51
k=17

AB=BC=AC=3k=3*17= 51   =>P ΔABC=3*51= 153cm
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