A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Help me find value of the x

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

    |dw:1439961491717:dw| drawing is not to scale

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

    are there any right angles or parallel lines?

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

    oops i forgot

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

    |dw:1439961616291:dw|

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

    AB is parrallel to DE

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

    AB is parallel to DE. What is the value of x?

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

    |dw:1439961722654:dw|

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

    yes i forgot the degree symbol sorry

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

    regarding the parallel lines, can you see an alternate angles

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

    yes. i see those two.

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

    |dw:1439961890921:dw|

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

    alternate angles are equal!

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

    equal to 180 total, yes?

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

    [if two angles add to 180° they are called supplementary , (not equal)]

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

    What angle is alternate to angle D, the 65° angle? can you mark it on the diagram

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

    x

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

    nope, x is not on the parallel lines

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

    oh the bottom one is also 65?

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

    which one?

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

    |dw:1439962229588:dw|

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

    yes, \(\angle CDE =\angle ABC\) (alternate angles are equal)

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

    so we have all the angles in this triangle : |dw:1439962315847:dw|

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

    oh can i do 40+65 = 105 and subtract that to 180 to get x?

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

    and we know that the three angles in any triangle are supplementary: \[\angle CAB+\angle ABC+ \angle BCA = 180°\\ 40°+65°+x=180°\\ x=180°-(40°+65°)\\ x=180°-105°\] (exactly)

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

    ok get it. what does supplimentery mean? sorry

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

    ( angles are supplementary ) == ( they add up to 180° )

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

    oh ok thank u so much great explenation

  28. 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.