Respuesta :

Answer:

11

Step-by-step explanation:

Triangles HOP and DIP are similar by AA Postulate.

Hence,

[tex] \frac{6}{27} = \frac{ HP}{9} \\ HP = \frac{6 \times 9}{27} = 2 \\ HD = HP + PD = 2 + 9 =11 \\ [/tex]

The answer is 11 when you set up using proportions