I Lou think the answer is 84?
Answer: the answer is 5.40
BC = 6 km
<u>/</u><u> </u> ACB = 34°
AC = ?
cos 34° = 
=> 0.829 = 
=> AC = 
=> AC = 7.23763570567
=> AC = 7 km
=> AC = 10 km
(nearest tenth)

<h3>Answer : 10 km</h3>

HOPE IT HELPS
PLEASE MARK ME BRAINLIEST ☺️
Exact form: 3/2
decimal form:1.5
mixed number: 1 1/2