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AngelDreamGurl

  • 4 years ago

How do I do this

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  1. AngelDreamGurl
    • 4 years ago
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  2. dpaInc
    • 4 years ago
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    is it to find x and y?

  3. dpaInc
    • 4 years ago
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    hint: the interior angles of all convex quadrilaterals add up to ....

  4. AngelDreamGurl
    • 4 years ago
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    180* and yes x anddd y

  5. asnaseer
    • 4 years ago
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    hint: what can you say about the angles alpha and beta here?: |dw:1334879074632:dw|

  6. AngelDreamGurl
    • 4 years ago
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    can we stick with a and b

  7. asnaseer
    • 4 years ago
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    sure - makes no difference to the question I asked

  8. AngelDreamGurl
    • 4 years ago
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    they are =

  9. asnaseer
    • 4 years ago
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    so see if you can spot this in your diagram

  10. AngelDreamGurl
    • 4 years ago
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    40 and y?

  11. asnaseer
    • 4 years ago
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    well done!

  12. asnaseer
    • 4 years ago
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    and what can you say about the sum of x and y (since they lie on a straight line)?

  13. AngelDreamGurl
    • 4 years ago
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    180

  14. asnaseer
    • 4 years ago
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    correct - so now you have just solved your own question - well done again.

  15. AngelDreamGurl
    • 4 years ago
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    lol

  16. asnaseer
    • 4 years ago
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    :)

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