it in the figure, ABCD is a rhombus, then find y-x
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AIn the rhombus ABCD , AC and BD are two diagonals .
And
angle BOC= angle BOD
x=40°(opposite angles)
and ,
Angel AOD+ angle COD= 180°
40+y=180
y=140
So (y-x) = 140-40
nswer:
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