I assume h is the hypotenuse on a triangle. We use trigonometric functions in order to find the value of h. Also, since side g is not specified whether it is adjacent or opposite angle f. We solve using every possible function and see from the choices the correct answer.
h = 27 sin 54 = 21.84
h = 27 cos 54 = 15.9
Therefore, most likely the correct answer is A.