Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Asivrs

  • 2 years ago

An engineer wanted to approximate the width, in feet of a river. she placed markers at point A and point B to represent the average width of the river. She also placed 3 other markers along the riverbank and measured the distances shown in the diagram below. Based on this diagram, what was the width of the river, in feet, from point A to point B?

  • This Question is Closed
  1. Asivrs
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1337276808827:dw|

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

    Use similarity of triangles

  3. atlas
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The two triangles that u see are similar and hence their corresponding sides will have the same ration

  4. Asivrs
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so..i should put 62 over 93 and 49 over X?

  5. Asivrs
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    find the ratio after that then... times it by 2?

  6. atlas
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Label the two triangles and see which angles are equal................The sides corresponding to equal angles are proportional|dw:1337277341870:dw| here AB:AC = BE:CD

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

    You do not know AB............So let it be x

  8. Asivrs
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but you dont know AD either.. right?

  9. atlas
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    U do not need AD................The equation AB:AC = BE:CD can be written as x/(x+49)= 62/93 Solve for x (Remember x = AB)

  10. atlas
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1337277608429:dw|

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

    \[\left[\begin{matrix}x & 62\\ x+49 & 93\end{matrix}\right]\]

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

    like okay.. x + 49 = AC,, so... ugh sorry i dont get math easily

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

    is there like a formula you can give me to help me out? i know if i see what i need to do i'll understand.

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

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.