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.

The angles of depression of the top and the bottom of a 10 m tall buil

1.	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.
Answer» 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 $30^{\circ}$ and $45^{\circ}$ , respectively. Find the height of the multi-storeyed building.