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
