Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

karatechopper

  • 3 years ago

If ABJ=28, ABC "congruent to" DBJ, find JBC.

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

    |dw:1349137596618:dw|

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

    So we know: DBJ + ABJ = 90 DBJ = ABC DBC + ABC = 90 JBC + DBC + ABJ = 90

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

    And last but not least: ABJ = 28

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

    Do you know how to solve a system of equations?

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

    Actually it doesn't matter, we can solve this one angle at a time.

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

    First you need to find DBJ... what is DBJ?

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

    I got 62 for DBJ

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

    Which is also ABC

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

    Correct

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

    Now we need to find DBC

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

    Well i know that 62=JBC+CBD now.. So then that also means ABC=JBC+CBD or! DBJ= JBC+CBD

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

    Soo..this is where i get stuck at

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

    DBC + ABC = 90

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

    We use this fact to find CBD

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

    DBC and CBD are the same

  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