Question
Mathematics Question on Angle between two lines
The angles of elevation and depression of the top and bottom of a lighthouse from the top of a 60 m high building are 30º and 60º respectively. Then the difference between the heights of the lighthouse and building is
A
20 m
B
80 m
C
60 m
D
40 m
Answer
20 m
Explanation
Solution
The correct option is (A): 20 m