Answer:
8.2 cm
Explanation:
The given shows us that we will be using CAH from SOH CAH TOA where
cos theta = adjacent / hypotenuse
in this case it will be
. cos 47 = h / 12
we want h to be the subject so we will multiply both sides by 12
. h = cos 47 * 12
. h = 8.184
now all you have to do is round to 1d.p
. h = 8.2cm