Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Yahoo! Group Title

A man wishes to estimate the distance of a near by tower first he measure the tower from a and next from b if basis is 100m and the angle is 40 find the distance between the man and the tower?

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    By using parallax method!

    • 2 years ago
  2. agdgdgdgwngo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you have a picture/drawing of the man and the tower? :-D

    • 2 years ago
  3. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1340283794599:dw|

    • 2 years ago
  4. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1340283873172:dw|

    • 2 years ago
  5. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    We have to find AC

    • 2 years ago
  6. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    @agdgdgdgwngo help

    • 2 years ago
  7. agdgdgdgwngo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    You can find the length of segment AC using trigonometric functions, since we are given the length of AB and the measure of angle ACB. Since \[\tan(40)=\frac{AB}{AC}\] Solving for AC yields \[AC = \frac{AB}{\tan(40)} = \frac{100}{\tan(40)}\] Work that out using a calcuator: http://www.wolframalpha.com/input/?i=100%2Ftan%2840%29

    • 2 years ago
  8. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    thats where i was stuck we need to convert angle into radian

    • 2 years ago
  9. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    or i dont know wat is tan 40

    • 2 years ago
  10. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    @satellite73

    • 2 years ago
  11. agdgdgdgwngo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    To convert from degrees to radians (and vice-versa) Degrees to radians:\[\text{Angle in degrees} \times \frac{\pi}{180}\] Radians to degrees:\[\text{Angle in radians} \times \frac{180}{\pi}\]

    • 2 years ago
  12. siddhantsharan Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    You need to use the value of tan40. No other way. tan40 = 0.83

    • 2 years ago
  13. agdgdgdgwngo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Right; you obtain the value of tan 40 from a table (or better - a scientific calculator).

    • 2 years ago
  14. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    hey during exam wat will i do calculators are not aloowed

    • 2 years ago
  15. Yahoo! Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    @siddhantsharan @agdgdgdgwngo

    • 2 years ago
  16. agdgdgdgwngo Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Well, if the angle is not something like 0,30,45,60,90,120,135,150,180, and you are prohibited from using calculators, then most likely a table of sines/cosines/tangents will be provided.

    • 2 years ago
  17. shubhamsrg Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    you may use tan120 = tan3(40) and expand it forms a cubic eqn hmm..you can try to solve it but wont be that easy.. you may better make assumtion,,or use calculator,,why not leave answer in tan form ? note tan 45 = 1 and tan 30 = 1/sqrt3 = 0.6 approx so tan 40 should be something in between ,,maybe 0.8 and 0.9..hmm

    • 2 years ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.