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mathslover

  • 2 years ago

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

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

  3. mathslover
    • 2 years ago
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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

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  4. mathslover
    • 2 years ago
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    Yes denebel

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

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

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

  8. mathslover
    • 2 years ago
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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

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

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

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

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

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

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

  15. mathslover
    • 2 years ago
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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?

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

  17. mathslover
    • 2 years ago
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    ok thankss

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