Answer:
x = 3.25 m
Step-by-step explanation:
First, find the height of the triangle using sin31:
sin 31 = h/9 ---> h = 9sin31 = 4.64 m
Next, we can now solve for x using tan55:
tan 55 = h/x --> x = (4.64 m)/(tan 55) = 3.25 m
