In this case, an observer sees the top of a vertical object at an angle of elevation 30°. If the height is 18 units, which expression gives the horizontal distance?
Question
In this case, an observer sees the top of a vertical object at an angle of elevation 30°. If the height is 18 units, which expression gives the horizontal distance?
36
18Ö3
18
18Ö2
Answer
18Ö3
Detailed Explanation
Use tan q = opposite/adjacent. For q=30°, solve adjacent = height/tan q. — Examisthan.com