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karatechopper Group Title

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

  • 2 years ago
  • 2 years ago

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  1. karatechopper Group Title
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    |dw:1349137596618:dw|

    • 2 years ago
  2. wio Group Title
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    So we know: DBJ + ABJ = 90 DBJ = ABC DBC + ABC = 90 JBC + DBC + ABJ = 90

    • 2 years ago
  3. wio Group Title
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    And last but not least: ABJ = 28

    • 2 years ago
  4. wio Group Title
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    Do you know how to solve a system of equations?

    • 2 years ago
  5. wio Group Title
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    Actually it doesn't matter, we can solve this one angle at a time.

    • 2 years ago
  6. wio Group Title
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    First you need to find DBJ... what is DBJ?

    • 2 years ago
  7. karatechopper Group Title
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    I got 62 for DBJ

    • 2 years ago
  8. wio Group Title
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    Which is also ABC

    • 2 years ago
  9. karatechopper Group Title
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    Correct

    • 2 years ago
  10. wio Group Title
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    Now we need to find DBC

    • 2 years ago
  11. karatechopper Group Title
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    Well i know that 62=JBC+CBD now.. So then that also means ABC=JBC+CBD or! DBJ= JBC+CBD

    • 2 years ago
  12. karatechopper Group Title
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    Soo..this is where i get stuck at

    • 2 years ago
  13. wio Group Title
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    DBC + ABC = 90

    • 2 years ago
  14. wio Group Title
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    We use this fact to find CBD

    • 2 years ago
  15. wio Group Title
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    DBC and CBD are the same

    • 2 years ago
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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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