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As observed from the top of a 100 m high...

As observed from the top of a 100 m high lighthouse from the sea level, the angles of depression of two ships are `30^@` and `45^@` If one ship is exactly behind the other one on the same side of the lighthouse, find the distance between the two ships.

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Knowledge Check

  • As observed from the top of a 75m high lighthouse from the sea-level,the angles of depression of two ships are 30^(@) and 45^(@) .If one ship is exactly behind the other on the same side of the lighthouse,find the distance between the two sh

    A
    `75(sqrt3-1)`m
    B
    `85(sqrt3-1)`m
    C
    `75(sqrt3+1)`m
    D
    None
  • From the top of a lighthouse. 100 m high, the angle of depression of two ships are 30° and 45°, if both ships are on same side find the distance between the ships ?

    A
    A. 120 m
    B
    B. 180 m
    C
    C. 240 m
    D
    D. 360 m
  • 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 :

    A
    `70(2-sqrt(3))m`
    B
    `70(2+sqrt(3))m`
    C
    `70(3-sqrt(3))m`
    D
    `70(3+sqrt(3))m`
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