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Aryang Group Title

GEOMETRY QUES: its a good ques,please try it

  • 2 years ago
  • 2 years ago

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  1. Aryang Group Title
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    |dw:1342192872407:dw| value of x ?

    • 2 years ago
  2. sOcCeR_fReAk7007 Group Title
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    I think \[x = 105\] im not sure

    • 2 years ago
  3. Aryang Group Title
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    nop..not the ans.. you have any method or guessing?

    • 2 years ago
  4. Aryang Group Title
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    @ParthKohli @experimentX @eliassaab @jhonyy9 @shubhamsrg @sam

    • 2 years ago
  5. sOcCeR_fReAk7007 Group Title
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    Can you get a picture up???

    • 2 years ago
  6. Aryang Group Title
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    i had this drawing..what do you mean by picture up ?

    • 2 years ago
  7. Aryang Group Title
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    @maheshmeghwal9 @mukushla @Romero @ganeshie8

    • 2 years ago
  8. maheshmeghwal9 Group Title
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    |dw:1342192775085:dw|

    • 2 years ago
  9. maheshmeghwal9 Group Title
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    |dw:1342192880199:dw|

    • 2 years ago
  10. maheshmeghwal9 Group Title
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    |dw:1342192995755:dw|

    • 2 years ago
  11. maheshmeghwal9 Group Title
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    |dw:1342193136068:dw|

    • 2 years ago
  12. Aryang Group Title
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    altough you're trying to make some progress but leme tell you,,its in vain till now! ;)

    • 2 years ago
  13. maheshmeghwal9 Group Title
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    Take each triangle in consideration i think u would get the answer

    • 2 years ago
  14. Aryang Group Title
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    try it..you wont by this method..

    • 2 years ago
  15. maheshmeghwal9 Group Title
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    see the last figure properly:) there is ur answer in it u would get 100%

    • 2 years ago
  16. Aryang Group Title
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    an eqn in x and y,,what else do you get ?

    • 2 years ago
  17. maheshmeghwal9 Group Title
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    no equation in y only equation in x get the y in the form of x from the last figure

    • 2 years ago
  18. maheshmeghwal9 Group Title
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    okay lemme try first:)

    • 2 years ago
  19. Aryang Group Title
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    show me..100 rs and a medal if you are able to! ;)

    • 2 years ago
  20. anjali_pant Group Title
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    are you sure that question is right ? :P

    • 2 years ago
  21. anjali_pant Group Title
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    Actually in this question I am able to form only one equation , which is x-y = 60 ! So not sure, still Iam trying ! :-)

    • 2 years ago
  22. maheshmeghwal9 Group Title
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    i also think that in question something is missing otherwise somebody had done it upto now by the way all members are intelligent.

    • 2 years ago
  23. sOcCeR_fReAk7007 Group Title
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    @Aryang Can you put an actual picture because I don't understand the drawing. I want to help but I don't understand the drawing. Sorry

    • 2 years ago
  24. prasannalakshmi Group Title
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    x=130

    • 2 years ago
  25. prasannalakshmi Group Title
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    is it ryt...

    • 2 years ago
  26. shubhamsrg Group Title
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    Lets do some construction : A circumcirle around ACB is constructed Now, angle O is 110 degrees, if it were to lie on the circle, it should have been 55 degrees so as to fulfill cyclic quad criteria. Since it is greater than that, it will lie inside the circle. |dw:1342256886064:dw| let BO extend to D and lets join DA and DC. DACB is now a cyclic quad now, <CDB>=<CAB> = 25 also, <BDA>=<BCA>=30 now, <DOC> = 130 , which gives us <DCO> as 25 =>DO = OC similarly, <DOA>=120 , which gives us <DAO> as 30 =>DO = OA =>DO=OA=OC thus <OCA> = <OAC> = 35 =>x= 95 degrees <--ans.. by the way, if you inspect clearly , O is the center of the circle. CASE CLOSED! ;)

    • 2 years ago
  27. shubhamsrg Group Title
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    PARDON ME FOR MY DRAWING ! :p

    • 2 years ago
  28. Aryang Group Title
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    correct <--yet again @shubhamsrg @maheshmeghwal9 you even got 3 medals !! lol.. :D

    • 2 years ago
  29. anjali_pant Group Title
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    is the ans posted by shubhamsrg correct ?

    • 2 years ago
  30. anjali_pant Group Title
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    The method of circumscribing seems fine to me , but can we really assume O to be the centre ?

    • 2 years ago
  31. phi Group Title
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    This problem is unconstrained, and there are many answers for x For example. |dw:1342280867011:dw| all the interior angles of the triangles sum to 180, and the interior angles of the quadrilateral sum to 360.

    • 2 years ago
  32. anjali_pant Group Title
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    can you please explain step by step , the drawing is a bit messy and confusing !

    • 2 years ago
  33. shubhamsrg Group Title
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    @phi ,, can you explain ? o.O

    • 2 years ago
  34. shubhamsrg Group Title
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    @anjali_pant i didnt assume that to be the center..i solved it without considering that fact. i just said that if you inspect further, you can prove O is the center.

    • 2 years ago
  35. Aryang Group Title
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    @anjali_pant yes he's correct as far as i am concerned,, @phi yes..i think you're going wrong somewhere..

    • 2 years ago
  36. anjali_pant Group Title
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    ok thanks people !!! :-)

    • 2 years ago
  37. phi Group Title
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    Are you saying my posted triangle violates the given conditions or is impossible to construct? If so, prove it (it will take you a very long time) the problem with shub's idea is that he chose a point D on the circumcircle such that DOB is a straight line. He introduced a new constraint not in the original problem. If he put D somewhere else on the circle (nothing in the problem prevents this) he would get a different answer for x.

    • 2 years ago
  38. shubhamsrg Group Title
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    @phi am totally confused what you are trying to point out.. i first circumscribed it then got my by extending that line.. maybe construction by hand using protractor and other stuff might help..

    • 2 years ago
  39. phi Group Title
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    You can extend the line so that line DOB is a straight line with D on the circumcircle. However, you could put D elsewhere on the circle so that DOB is not a straight line. If you do, you will get a different answer for x. In other words, because you picked a specific cyclic quadrilateral, you get a specific value for x. But you can pick a different cyclic quadrilateral (agreed?). If you do, you get a different x

    • 2 years ago
  40. shubhamsrg Group Title
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    ok i'll be back to it..

    • 2 years ago
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