When a 50 decimeter long ladder is placed with the wall, it reaches up to the window only. If the window is 48 decimeter up from the land, then find out the distance of the lower face of the ladder from the wall.
A girl is observing a bird silting at a height of 500 in from the ground. The angle of elevation of the bird from the girl's eyes is at the initial position. After some time, the girl moves on the ground towards the bird by 50 in and bird flies away from her At this point, the angle of elevation reduces to . Find the distance travelled by the bird. Take
The angle of elevation of a bird from a point 60 m above the water in a pond is 30°. The angle of depression of the reflection of the bird under the water from the same point is 60°. Find the height of the bird in metres hovering over the pond.
The angle of elevation of the top of a 36 m tall tower from the initial position of a person on the ground was 60 deg. She walked away in a manner that the foot of the tower, her initial position and the final position were all in the same straight line. The angle of elevation of the top of the tower from her final position was 30 deg. How much did she walk from her initial position?
The height of a light house is 20 mts above sea level. The angle of depression (from the top of the lighthouse) of a ship in the sea is 30 deg. What is the distance of the ship from the foot of the light house?