Ask Experts Questions for FREE Help !
Ask
    dondana keisham's Avatar
    dondana keisham Posts: 1, Reputation: 1
    New Member
     
    #1

    Aug 6, 2009, 12:03 AM
    Trigonometry height and distance
    As observed from the top of a light house 100m above the water level, the angles of depression of two ships are 30 and 45 degrees.If one ship is to the east of the light house,find the distance between the two ships
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
     
    #2

    Aug 6, 2009, 04:13 AM

    Have you made a sketch? Also, I'm assuming here that both ships are to the east of the lighthouse, for there would be too many solutions otherwise.

    If you have, then the solutions will come by themselves. The only things you need here is :



    OPP is the opposite side to the angle and ADJ is the adjacent side. It's easier of you work with the angle between whole lighthouse and the line of sight of your observer (that is remove the concerned angle from 90 degrees).

    Then, when you find the distances of both ships from the lighthouse, you find their distance apart by subtracting the closer from the further distance.

    Post your answer, please. :)
    rprakashsamy's Avatar
    rprakashsamy Posts: 1, Reputation: 1
    New Member
     
    #3

    Nov 28, 2010, 08:49 PM
    73.2 m

Not your question? Ask your question View similar questions

 

Check out some similar questions!

Trigonometry- height & length apart [ 3 Answers ]

I really don't get this:S A video camera is mounted at the top of a 120m building. When the camera tilts down 36(degrees) with the horizontal, it views the bottom of another building. If it tilts up at 47 (degrees) to the horizontal, it can view the top of the same building. a) How far apart are...

Critical Distance is Pipe Length or Literal Distance? [ 2 Answers ]

Is critical distance measurement based on the literal distance from a trap to the vent stack, or the total length pipe from the trap to the vent? In other words, if the trap is 4 feet from the vent, but the drain pipe from the trap to the branch that has the vent connected to it is 10 feet, is the...


View more questions Search