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-   -   A man measured the angle of elevation of the top of a tower to be 70deg,When he walke (https://www.askmehelpdesk.com/showthread.php?t=442464)

  • Feb 2, 2010, 08:51 PM
    rmonterde
    A man measured the angle of elevation of the top of a tower to be 70deg,When he walke
    A man measured the angle of elevation of the top of a tower to be 70deg,When he walked 300meters further, the angle of elevation of the top was 35deg, what is the height of the tower?
  • Feb 3, 2010, 08:10 AM
    ebaines

    rmonterde: Nice homework problem. We're not going to just give you the answer, but will help you out if you show some effort here and get stuck.
  • Feb 4, 2010, 08:27 AM
    colbtech

    As a starter, draw the problem. With the tower on one side (doesn't matter about the height) then draw an imaginary line to indicate the 70° angle to the top of the "tower". Then draw a further line at 35° to the top of the tower. Then fill in what you know. Start with that and see if you can figure it out
  • Feb 4, 2010, 10:54 AM
    galactus
    1 Attachment(s)

    Use the law of tangents according to the diagram. Solve for x and y.
    y being the height of the tower.

    i.e. one equation would be

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