Respuesta :

The required "option D. 9.6" is correct.

Step-by-step explanation:

In given figure,

AD = x, DB = 12, BE = 8 and EC = 10

To find, the value of x = ?

Use the Side-Splitting Theorem,

We know that,

[tex]\dfrac{AD}{DB} =\dfrac{BE}{EC}[/tex]

[tex]\dfrac{x}{12} =\dfrac{8}{10}[/tex]

⇒ x =[tex]\dfrac{8 \times 12}{10}[/tex]

⇒ x = [tex]\dfrac{96}{10}[/tex]

⇒ x = 9.6

∴ The value of x = 9.6

Thus, the required "option D. 9.6" is correct.