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anonymous

  • one year ago

Can someone help me in Geometry? Question posted below.

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  1. anonymous
    • one year ago
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  2. marigirl
    • one year ago
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    Angles on a line add to 180. so we could denote angle AEC as x and make everything equal to 180

  3. anonymous
    • one year ago
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    I know that this angel is supplementary. (= 180 degrees). I just don't remember how to solve this equation to figure out the exact amount that angle AEC =. Do you know how to solve it @marigirl ?

  4. marigirl
    • one year ago
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    Would you have answers to check my working? I would add all the angles uo AEB+BEC+CED 11x-12+x+4x+1=180 16x-11=189 x=191/16 Calculate angle AEC 11x-12+x =524/4

  5. anonymous
    • one year ago
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    Which part do I need to solve?

  6. marigirl
    • one year ago
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    I added all the angles up and made it equal to 180 and then found angle AEC (which is what the question asked) would you be able to look at the answers to see if we are on the right track?

  7. anonymous
    • one year ago
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    What's the answer?

  8. marigirl
    • one year ago
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    I think its 525/4 or 131.25 degrees

  9. anonymous
    • one year ago
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    So AEC = 131.25?

  10. marigirl
    • one year ago
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    I think so

  11. anonymous
    • one year ago
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    Are you sure on that answer?

  12. marigirl
    • one year ago
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    I would add all the angles up AEB+BEC+CED 11x-12+x+4x+1=180 16x-11=180 x=191/16 Question asked to calculate angle AEC 11x-12+x =525/4 or 131.25 degrees That is what i think the answer is

  13. madhu.mukherjee.946
    • one year ago
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    @TQKMB what happened

  14. madhu.mukherjee.946
    • one year ago
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    your angle aec =139

  15. anonymous
    • one year ago
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    @madhu.mukherjee.946 How did you get 139?

  16. madhu.mukherjee.946
    • one year ago
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    okay wait i'm telling u

  17. anonymous
    • one year ago
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    @madhu.mukherjee.946 How did you get 139?

  18. madhu.mukherjee.946
    • one year ago
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    your ec is bisecting the angle bed

  19. madhu.mukherjee.946
    • one year ago
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    so angle ceb =angle ced

  20. madhu.mukherjee.946
    • one year ago
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    so if angle ced=4x+1 your angle ceb =4x+1

  21. madhu.mukherjee.946
    • one year ago
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    now angle aeb=11x-12 is given

  22. madhu.mukherjee.946
    • one year ago
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    now there is a geometric property that states that angles on a straight line =180

  23. madhu.mukherjee.946
    • one year ago
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    now 4x+1+4x+1+11x-12=180 19x-10=180 19x=190 x=10

  24. madhu.mukherjee.946
    • one year ago
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    so now angle aec=angle aeb+angle bec =11x-12+4x+1 now putting x=10 =110-12+40+1 =139

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