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The sides AB,BC , CD and DA of a quadril...

The sides AB,BC , CD and DA of a quadrilateral have the equations `x+2y=3,x=1,x-3y=4and5x+y+12=0` repectively . Find the angle between the diagonals AC and BD.

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The correct Answer is:
`90^(@)`
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CHHAYA PUBLICATION-STRAIGHT LINE-EXERCISE 2B (Long Answer Type Questions )
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