For quadrilateral ghij to be a parallelogram, what needs to be congruent to jgh and ghi a) ijk, hjk b) gkj, hki c) jih, gji d) hgj, gji

The correct option is C.

Explanation:

It is given that GHIJ is a quadrilateral and HJ, GI are the diagonals of the quadrilateral.

Let GHIJ is a parallelogram.

The opposite sides of the parallelogram are parallel and have same length. The diagonals divides the parallelogram in two equal or congruent parts. Diagonal bisects the angle.

Since JH is a diagonal so triangle JGH and JIH are congruent because,

     (common side)

      (JH bisects the angle J)

      (JH bisects the angle H)

So by ASA rule of congruence  triangle JGH and JIH are congruent.

Since GI is a diagonal so triangle GHI and GJI are congruent because,

     (common side)

      (GI bisects the angle G)

      (GI bisects the angle I)

So by ASA rule of congruence  triangle GHI and GJI are congruent.

If these triangle are congruent to each other then the we can say that the quadrilateral is a parallelogram.

So, the correct option is C.

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step-by-step explanation:

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