Question

Ex 10 .. Plz..Dau coroana !!

Answer 1

   
[tex]\displaystyle\\ 10)\\\\ \frac{AM}{AB} = \frac{1}{4} \\\\ \frac{AN}{NC} = \frac{1}{3} ~~\text{\bf Calculam proportia derivata:}\\\\ \frac{AN}{AN+NC} = \frac{1}{1+3} ~\Longrightarrow ~\frac{AN}{AC} = \frac{1}{4} \\\\ \text{Conform reciprocei Teoremei lui Thales avem:}\\\\ \bf Daca: \frac{AM}{AB} = \frac{AN}{AC} =\frac{1}{4}, \text{\bf atunci } MN||BC [/tex]