If a line intersects sides AB and AC of a △ABC at D and E respectively and is parallel to BC, then ADAB = AEx Then x is ____.

If a line intersects sides AB and AC of a △ABC at D and E respective

1.	If a line intersects sides AB and AC of a △ABC at D and E respectively and is parallel to BC, then ADAB = AEx Then x is ____.
Answer» If a line intersects sides AB and AC of a $△ A B C$ at D and E respectively and is parallel to BC, then $\frac{A D}{A B}$ = $\frac{A E}{x}$ Then $x$ is ____.