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