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mathslover Group Title

Please help in this question : Calculate the area of the shaded region

  • 2 years ago
  • 2 years ago

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  1. mathslover Group Title
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    • 2 years ago
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  2. Denebel Group Title
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    Is the 15 the length from BC?

    • 2 years ago
  3. mathslover Group Title
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    Ok so this is an easy question but my problem is that :how do I find the area of triangle AOD

    • 2 years ago
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  4. mathslover Group Title
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    Yes denebel

    • 2 years ago
  5. hartnn Group Title
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    AOD isn't a triangle ....is it? u meant ACD?

    • 2 years ago
  6. mathslover Group Title
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    OH i meant triangle OBD

    • 2 years ago
  7. hartnn Group Title
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    isn't BO perpendicular to AD ?

    • 2 years ago
  8. mathslover Group Title
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    NOTE : I have solution but the answer given by the soln is totally wrong acc. to me I know that hartnn but... the soln does not go through that step

    • 2 years ago
  9. mathslover Group Title
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    it only goes find area of triangle AOB and then area of triangle ABC and then subtraction as u know

    • 2 years ago
  10. mathslover Group Title
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    Is that right step?

    • 2 years ago
  11. hartnn Group Title
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    u mean Area of ABC-ABD ?

    • 2 years ago
  12. mathslover Group Title
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    ar of ABC - ar ABO

    • 2 years ago
  13. mathslover Group Title
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    that is mentioned by : the book and i think where does BOD go ..

    • 2 years ago
  14. hartnn Group Title
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    thats not correct to find area ADC it must be ABC-ABD=ABC-ABO-BOD

    • 2 years ago
  15. mathslover Group Title
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    yes very right ... but the book was 'reliable' so I thought it may contain some trick so either figure is wrong or the soln right?

    • 2 years ago
  16. hartnn Group Title
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    yup, either of the two is incorrect.

    • 2 years ago
  17. mathslover Group Title
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    ok thankss

    • 2 years ago
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