- Find the value of x for which ABCD must be a parallelogram.


Find The Value Of X For Which ABCD Must Be A Parallelogram class=

Answer :

9514 1404 393

Answer:

  x= 5

Step-by-step explanation:

Sides BC and AD will be parallel when the two  marked angles have the same measure:

  5x -3 = 14x -48

  45 = 9x . . . . . . . . . add 48-5x

  5 = x . . . . . .  divide by 9

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