Question:medium

Two diagonal sides of a parallelogram \(ABCD\) are \[ x-y+1=0 \] and \[ 3x-y=9. \] If one of its diagonals is \[ 7x-5y+3=0, \] then the equation of the other diagonal is

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The diagonals of a parallelogram bisect each other. Find the midpoint of the known diagonal first, then determine the equation of the other diagonal passing through the same midpoint.
Updated On: Jul 18, 2026
  • \(x-3y+13=0\)
  • \(5x+7y=13\)
  • \(x+y-2=0\)
  • \(x+3y=4\)
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The Correct Option is A

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