Ram is watching the top and bottom of a lighthouse from the top of the building. The angles of elevation and depression of the top and bottom of a lighthouse from the top of a 60 m high building are 30 and 60 respectively. 60 m Building 30 60 60 Lighthouse B D Find (i) the difference between the heights of the lighthouse and the building. (ii) the distance between the lighthouse and the building. OR The ratio of the height of a light house and the length of its shadow on the ground is 3 : 1 What is the angle of elevation?