Paheli noticed water being pulled up by a motor-pump to an overhead tank of a five-storeyed building. She wondered how water moves up to great heights in the tall trees standing next to the building. Can you tell how?
The angles of depression of the top and the bottom of a 10 m tall building from the top of a multi-storeyed building are 30∘ and 45∘, respectively. Find the height of the multi-storeyed building.