A guard observes an enemy boat, from an observation tower at a height of 200m above sea level to be an angle of depression of `30^(@)`.
What is the distance of the boat from the foot of the observation tower.

From the top of a lighthouse 120m above the sea, the angle of depression of a boat is 15^(@) . What is the distance of the boat from the lighthouse?

From the top of a lighthouse 120 m above the sea, the angle of depression of a boat is 15^(@). what is the distance of the boat from the lighthouse?

From the top of a light -house at a height 20 metres above sea -level,the angle of depression of a ship is 30^(@) .The distance of the ship from the foot of the light house is

From the top of a lighthouse 70 m high with its base at sea level, the angle of depression of a boat is 15^(@). The distance of the boat from the foot of the lighthouse is

From the top of a lighthouse 70 m high with its base at sea level, the angle of depression of a boat is 15^(@) . The distance of the boat from the foot of the lighthouse is :

From the top of a lighthouse 60 meters high with its base at the sea level, the angle of depression of a boat is 15^(@) . The distance of the boat from the foot of the lighthouse is

The angle of depression of a boat B from the top K of a cliff HK, 300 metres high is 30^(@) . Find the distance of the boat from the foot H of the cliff.

From the top of a tower 180 m high, it was observed that the angle of depression of the bottom of a cat sitting on the ground was 30^(@) . Find the distance of the cat from the foot of the tower.

A boat is moving away from an observation tower .It makes an angle of depression of 30^(@) with an observer 's eye when at a distance of 50 metre from the tower . After 8 seconds ,the angle of depression becomes 60^(@) .By as - suming that it is running in still water , the approximate speed of the boat is :

The angle of elevation of a tower from a distance 100 m from its foot is 30^(@) .Height of the tower is :