Respuesta :

The answer  is the option E: E. 8
 The explanation is shown below:
 1. You have that the triangles shown in the figure attached, are similar, therefore, you can calculate h as following:
 (20-4)/h=h/4
 16/h=h/h
 2. Now, solve for h:
 h²=64
 h=√64
 h=8

Answer:

the anwser is 8

Step-by-step explanation: