Answer :

Answer:

1 < x < 2.6

Step-by-step explanation:

Use trigonometry ratio,

tan 35° = 12/DB

DB = 12/tan 35° = 17.1

Also,

tan 20° = 4x-4/ 17.1

4x - 4 = 17.1 tan 20° = 6.24

4x - 4 = 6.24

4x = 6.24 + 4 = 10.24

Divide both sides by 4

x = 10.24/4 = 2.57

x = 2.6