Answer:
Below.
Step-by-step explanation:
In a right triangle:
sin x = opposite side / hypotenuse
cos x = adjacent side / hypotenuse
tan x = opposite side / adjacent side
In this triangle the hypotenuse = 12 and the adjacent side = h
so we use cos 47
cos 47 = h / 12
h = 12 cos 47
h = 8.2 cm.
