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pratu043 Group Title

Show that in a quadrilateral ABCD, AB+BC+CA+DA > AC+BD.

  • one year ago
  • one year ago

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  1. mukushla Group Title
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    |dw:1344502321128:dw|

    • one year ago
  2. sauravshakya Group Title
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    |dw:1344502527479:dw|

    • one year ago
  3. sauravshakya Group Title
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    take two triangles ABC and triangles BDC

    • one year ago
  4. sauravshakya Group Title
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    |dw:1344502571798:dw|In triangle ABC,

    • one year ago
  5. sauravshakya Group Title
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    I think the question is AB+BC+CA+DA > AC+CD

    • one year ago
  6. mukushla Group Title
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    @pratu043 i think there is a problem with question

    • one year ago
  7. mukushla Group Title
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    AB+BC+CA+DA > AC+BD --- ---

    • one year ago
  8. sauravshakya Group Title
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    @pratu043 u there

    • one year ago
  9. pratu043 Group Title
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    Sorry, it is BD not CD.

    • one year ago
  10. pratu043 Group Title
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    help please.

    • one year ago
  11. sauravshakya Group Title
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    oh i got it

    • one year ago
  12. sauravshakya Group Title
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    in triangle ABD , AB + DA > BD

    • one year ago
  13. pratu043 Group Title
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    The quadrilateral should be like this: |dw:1344503679049:dw|

    • one year ago
  14. sauravshakya Group Title
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    in triangle ABD , AB + DA > BD right @pratu043

    • one year ago
  15. pratu043 Group Title
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    How did you get that @sauravshakya?

    • one year ago
  16. sauravshakya Group Title
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    In a triangle sum of two sides of a triangle is always greater than the third side right?

    • one year ago
  17. sauravshakya Group Title
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    @pratu043

    • one year ago
  18. pratu043 Group Title
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    Oops, yes I forgot that.

    • one year ago
  19. pratu043 Group Title
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    So what next?

    • one year ago
  20. sauravshakya Group Title
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    Cancel CA and AC since they are same side..... so u will get AB+BC+DA > BD.

    • one year ago
  21. sauravshakya Group Title
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    right?

    • one year ago
  22. sauravshakya Group Title
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    and since AB + BC > BD, AB+BC+DA > BD (thus, proved)

    • one year ago
  23. sauravshakya Group Title
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    got it?

    • one year ago
  24. pratu043 Group Title
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    But AB+BC+DA > BD is not what we should prove.

    • one year ago
  25. jiteshmeghwal9 Group Title
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    |dw:1344516745619:dw|

    • one year ago
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