Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ashleyb

  • 2 years ago

can someone please help me with this geometry question?? in right triangle ACE, line BD is parallel to line AE, and line BD is perpendicular to line EC at D. the length of line BD is 3 feet, and the length of line CD is 4 feet. what is the length in feet of line AE

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

    |dw:1360370433442:dw|

  2. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    First you need to find BC

  3. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do you know how to do this?

  4. ashleyb
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    is bc 5?

  5. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    good

  6. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    now set up the following ratio AE/BD = AC/BC x/3 = 20/5 solve for x

  7. ashleyb
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    12

  8. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you got it

  9. ashleyb
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    but why do u set up a ratio?

  10. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    because the ratio of AE to BD is the same as the ratio of AC to BC

  11. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    basically, to go from BD to AE, you multiply by 4 to go from BC to AC, you also multiply by 4

  12. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so the bigger triangle has side lengths that are 4 times larger than the smaller triangle

  13. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    setting up a ratio is similar to that idea

  14. ashleyb
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    oh ok i get it! thank you for your help

  15. jim_thompson5910
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    np

  16. 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.