Respuesta :

Answer:

BD = 16

Step-by-step explanation:

        X                     8                        

B----------------C-----------------D

|<------------2X------------------->|

FIND; numerical length of BD

BC + CD = BD

X + 8 = 2X

8 = 2X - X

8 = X

BD = 2X

BD = 2(8)

BD = 16