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shubhamsrg

ABC is a triangle inscribed in a cirlce. AD and AE are straight lines drawn from A to the base BC parallel to the tangents at B and C respectively. given AB=5, AC=6 and CE=9 ,find length of BD

  • one year ago
  • one year ago

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  1. shubhamsrg
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    now there are 2 figures possible of this : |dw:1350459104532:dw| OR

    • one year ago
  2. shubhamsrg
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    |dw:1350459323053:dw|

    • one year ago
  3. sauravshakya
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    |dw:1350459526913:dw|

    • one year ago
  4. sauravshakya
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    I think that will lead to the solution.

    • one year ago
  5. sauravshakya
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    Triangle AEC , ADB and ABC are similar triangles.

    • one year ago
  6. shubhamsrg
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    how are they similar ?

    • one year ago
  7. shubhamsrg
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    and how did you get <A = @ ?

    • one year ago
  8. sauravshakya
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    Angle between a tangent and a chord at the point of contact is equal to the opposite inscribed angle.

    • one year ago
  9. sauravshakya
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    Also, AE=ED

    • one year ago
  10. sauravshakya
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    |dw:1350460037538:dw|

    • one year ago
  11. shubhamsrg
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    ohh,,so sorry !! from tge last 1/2 hr..i have been making the same mistake!!

    • one year ago
  12. shubhamsrg
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    yep..clear so far..

    • one year ago
  13. sauravshakya
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    So, Now can u?

    • one year ago
  14. shubhamsrg
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    allow me to try.

    • one year ago
  15. sauravshakya
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    OKAY!

    • one year ago
  16. shubhamsrg
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    cosine law right ?

    • one year ago
  17. sauravshakya
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    Nope.

    • one year ago
  18. sauravshakya
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    Similar triangles will do it.

    • one year ago
  19. shubhamsrg
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    why will they be similar? AEC and ADB ?

    • one year ago
  20. shubhamsrg
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    only 1 angle is common,,what else?

    • one year ago
  21. shubhamsrg
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    not common,,i mean equal*

    • one year ago
  22. sauravshakya
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    |dw:1350460670165:dw|

    • one year ago
  23. sauravshakya
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    First show triangle ABC and triangle AEC similar

    • one year ago
  24. shubhamsrg
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    i dont guess they are ? are they ?

    • one year ago
  25. sauravshakya
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    Triangle ABC and triangle AEC are similar....... u got this?

    • one year ago
  26. shubhamsrg
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    nops? which angle equals which in that similarity ?

    • one year ago
  27. shubhamsrg
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    ohh..got it,,got it..

    • one year ago
  28. shubhamsrg
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    ahh i see,,all 3 are similar then

    • one year ago
  29. sauravshakya
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    @shubhamsrg u got that?

    • one year ago
  30. shubhamsrg
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    yes i understand now..

    • one year ago
  31. shubhamsrg
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    and i got the ans.. its 25/4 .. thanks a ton1

    • one year ago
  32. sauravshakya
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    Welcome buddy

    • one year ago
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