Question

According to the triangle proportionality theorem, which proportion is correct?

Answer 1

Answer

MB/AM=NC/AN 

hope it helps

Answer 2

According to triangle proportionality theorem:

If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.

And in the given triangle, MN parallel to BC, So MN divided the two sides in proportion, that is

$\frac{MB}{AM}=\frac{NC}{AN}$

Correct option is the third option .