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

4. Find the value of x for which ABCD must be a parallelogram.-example-1

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Here is your answer!!

Properties of Parallelogram :

  1. Opposite sides are equal.
  2. Opposite sides are parallel
  3. Adjacent angles add upto 180°.
  4. Opposite angles are equal.

Here in the question we are provided with opposite sides 3x- 5 and 2x + 3 .

Therefore, First property of Parallelogram will be used here and both the opposite sides must be equal.


\sf 3x- 5 = 2x + 3

Further solving for value of x

Move all terms containing x to the left, all other terms to the right.


\sf 3x - 2x = 3 + 5


\sf 1x = 8


\sf x = 8

Let's verify our answer!!

Since, 3x- 5 = 2x + 3

We are simply verify our answer by substituting the value of x here.


\sf 3x- 5 = 2x + 3


\sf 3(8) - 5 = 2(8) + 3


\sf 24 - 5 = 16 + 3


\sf 19 = 19

Hence our answer is verified and value of x is 8

Answer - Option 1

User Tim Stewart
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