Question

please help me for the 3rd question below

Answer 1

In the given Triangle ABC , DE||BC
Therefore
By BPT,

$\frac{x}{x - 2} = \frac{x + 2}{x - 1}$
ie

${x}^{2} - x = {x}^{2} - 4$
ie

$x = 4$

Answer 2

hope ! it will help you