A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Kailee1423

  • one year ago

I need help figuring out how to solve for x on certain triangles. I can solve it easily if it has two sides or two angles already stated, but I don't know what to do if it only has one angle and one side. I'll give a couple examples in the comments.

  • This Question is Closed
  1. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1438880826360:dw|

  2. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    X is the hypotenuse. I forgot to draw it.

  3. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    your 3angle is 70

  4. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Which third angle?

  5. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    the top one

  6. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Can you show how you got it?

  7. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yeah

  8. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    sum of all the angles of a triangle is 180 so your one angle is given 20 and the other one is 90 as it is a rt angled triangle so the other angle is -180 -(90+20)=70

  9. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh ok. So would I use Pythagorean triples to solve for x?

  10. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yeah

  11. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    but one side is x and the other is 19 but you need to have data of another side

  12. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    How do I do that? This is so confusing. Lol

  13. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    probably the question is incorrect wait i'm checking

  14. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    no the question is wrong you got to have two sides

  15. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    It can't be wrong. I got it from my homework. Lol

  16. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    any other info

  17. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Here are the choices: A. 55.6 B. 55.8 C. 6.7 D. 6.5

  18. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    pls wait

  19. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    nope there's surely some problem

  20. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I just don't think there is cuz there's other problems like this one but this one looked the simplest so I posted it.

  21. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    ok

  22. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think I found something in my book. If I mark the other unknown side as x, too, then I could do 2x squared = 19 squared and then find the square root

  23. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    why will you mark the other side as x

  24. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    did they tell you that they are equal

  25. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Hmmm..... good point lol

  26. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    then also your answer is not coming i've calculated

  27. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    did they tell you the area of the triangle

  28. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    No, that's all it said besides the fact that it's not drawn to scale.

  29. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    And to round to the nearest 10th

  30. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yeah theres something wrong wait i'm asking a frnd of mine

  31. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    @saseal

  32. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    this has got to do with inverse sine function

  33. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Can you explain it, please?

  34. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\sin^{-1} (\frac{ 19 }{ x } = 20^{o}\]

  35. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    hey i got it

  36. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    its 55.8

  37. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you can try the options since its mcq

  38. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yeah

  39. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    will you explain it to her

  40. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok

  41. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I still don't know exactly how to solve it... Lol sorry, this stuff is confusing to me.

  42. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    wait @Kailee1423 he'll explain it to you

  43. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you know \[\sin = \frac{ Opposite }{ Hypotenuse }\]

  44. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    its a ratio of opposite and hypotenuse

  45. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yeah, but how do you know which side is opposite?

  46. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1438883342515:dw|

  47. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thats how you know

  48. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    you got to consider the 20 degree angle

  49. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    then your sin 20=19/x sin 20 value is 0.34 so x=19/0.34=55.8

  50. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    hey @Kailee1423 did you understand what we said

  51. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    How did you get 0.34?

  52. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    calculater sweety

  53. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    just in a calculater try the value of sin 20

  54. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh ok. Why is it the sin of 20 instead of 19?

  55. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\sin 20 = 19/x\]\[0.342=19/x\]\[0.342x=19\]\[19/0.342=x\]

  56. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the angle is 20

  57. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    because we always finf sin of an angle and not of a side

  58. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you dont sine the length only angle

  59. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yeah

  60. madhu.mukherjee.946
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    now u understand

  61. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    its actually 55.6

  62. Kailee1423
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you both! :) Sorry, my computer crashed.

  63. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.