Question

Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.

Answer 1

x = 11 x cos(22)

x = 10.199

x = 10.2

Answer 2

What you should do in this case is to use the following trinonometric relationship:
cosx = C.A / h
Where
C.O: Adjacent leg.
h: hypotenuse.
Substituting:
cos (22) = (x) / (11)
Clearing x:
x = 11 * cos (22)
x = 10.2
Answer:
The value of x is
x = 10.2