The angle of depression of a ship from the top of a tower 30 m height has measure 60. Then, the distance of the ship from the base of the tower is ………..

The angle of elevation of the top of the building A from the base of building B has measure 50. The angle of elevation of the top of the building B from the base of building A has measure 70. Then, ………….

If the angle of elevation of the top of a tower of a distance 400 m from its foot has measure 30, then the height of the tower is ……..

When the length of the shadow of the pole is equal to the height of the pole, then the angle of elevation of the source of light has measure

From the top of a building h metre high, the angle of depression of an object on the ground has measure θ. The distance (in metres) of the object from the foot of the building is