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-   -   Drawing the diagram (https://www.askmehelpdesk.com/showthread.php?t=350861)

  • May 7, 2009, 08:32 AM
    keke-1990
    Drawing the diagram
    Points o,p and q are in the sam horizontal plane. P is 15m away from o in a bearring of 40 degrees from o. q is on a bearing of 130 degrees from o and pq is 17m.
    Sketch a diagram to show the positions of o,p and q?
  • May 7, 2009, 08:33 AM
    keke-1990

    I don't know
  • May 7, 2009, 08:40 AM
    galactus
    The triangle formed is a right triangle. Just get a protractor and rule and draw it.

    Let north be the y axis and be bearing 0. Then, go to the right 40 degrees and measure 40

    up to p.

    Then, from the same y axis, measure 130 degrees and measure?

    Connect p and q and the length should be 17.

    To find the length unknown from o to q, just use Pythagoras.

    Since it is a right triangle, you could use sine, cosine, tangent to find any angles you need.

    The reason it is a right triangle is because 130-40=90. That is the angle at O.

    Does that help?
  • May 8, 2009, 03:14 PM
    keke-1990
    Thank you very much

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