AngelDreamGurl
How do I do this



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AngelDreamGurl
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dpaInc
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is it to find x and y?

dpaInc
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hint: the interior angles of all convex quadrilaterals add up to ....

AngelDreamGurl
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180* and yes x anddd y

asnaseer
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hint: what can you say about the angles alpha and beta here?:
dw:1334879074632:dw

AngelDreamGurl
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can we stick with a and b

asnaseer
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sure  makes no difference to the question I asked

AngelDreamGurl
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they are =

asnaseer
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so see if you can spot this in your diagram

AngelDreamGurl
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40 and y?

asnaseer
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well done!

asnaseer
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and what can you say about the sum of x and y (since they lie on a straight line)?

AngelDreamGurl
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180

asnaseer
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correct  so now you have just solved your own question  well done again.

AngelDreamGurl
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lol

asnaseer
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:)