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DrPepperx3 Group Title

geometry sucks >_< help ? :( medal!

  • 3 months ago
  • 3 months ago

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  1. DrPepperx3 Group Title
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    8. An airplane pilot over the Pacific sights an atoll of an angle of depression of 7 degrees. At this time, the horizontal distance from the airplane to the atoll is 3,729 meters. What is the height of the plane to the nearest meter? A. 458 meters B. 454 meters C. 3,667 meters D. 3,701 meters

    • 3 months ago
  2. DrPepperx3 Group Title
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    • 3 months ago
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  3. Musicman778 Group Title
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    I would say D but it's not a for sure answer

    • 3 months ago
  4. DrPepperx3 Group Title
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    can you explain to me how to work out the problem? cus im lost :c

    • 3 months ago
  5. Musicman778 Group Title
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    Well it says nearest meter, so just guesstimating it looks about 3701, D, but that's pretty much all I get.

    • 3 months ago
  6. ranga Group Title
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    What is the angle at the vertex on the right hand side of the triangle?

    • 3 months ago
  7. ranga Group Title
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    use "alternate interior angle" theorem.

    • 3 months ago
  8. DrPepperx3 Group Title
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    can you give an example?

    • 3 months ago
  9. ranga Group Title
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    |dw:1396650172181:dw|

    • 3 months ago
  10. ranga Group Title
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    Angle DAC = Angle ACB (alternate interior angle because AD and BC are parallel and the line or transversal AC cuts them.) Therefore angle C = 7 degrees. We want to find AB. We know BC to be 3,729 meters. What trig function connects AB and BC involving angle C?

    • 3 months ago
  11. DrPepperx3 Group Title
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    tan?

    • 3 months ago
  12. ranga Group Title
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    Yes. tan(C) = AB / BC AB = BC * tan(C) plug in the numbers and calculate AB.

    • 3 months ago
  13. DrPepperx3 Group Title
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    ok hold on c:

    • 3 months ago
  14. ranga Group Title
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    Make sure to set your calculator to degrees because 7 is in degrees and not radians.

    • 3 months ago
  15. DrPepperx3 Group Title
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    im using rad not deg right?

    • 3 months ago
  16. DrPepperx3 Group Title
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    oo ok!

    • 3 months ago
  17. ranga Group Title
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    degrees NOT radians.

    • 3 months ago
  18. DrPepperx3 Group Title
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    I got 0.701 ... I think I did something wrong .-.

    • 3 months ago
  19. ranga Group Title
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    As said before, set your calculator to DEGREES.

    • 3 months ago
  20. DrPepperx3 Group Title
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    its on degrees

    • 3 months ago
  21. DrPepperx3 Group Title
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    that's why im confused

    • 3 months ago
  22. DrPepperx3 Group Title
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    your question got deleted?

    • 3 months ago
  23. ranga Group Title
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    AB = BC * tan(C) = 3729 * tan(7) = ?

    • 3 months ago
  24. DrPepperx3 Group Title
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    b! 454 meters?

    • 3 months ago
  25. ranga Group Title
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    Try again.

    • 3 months ago
  26. DrPepperx3 Group Title
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    oops sorry I got over excited a lol I forgot to round

    • 3 months ago
  27. ranga Group Title
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    What answer did you get?

    • 3 months ago
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