If the diagonal of a parallelogram are equal ,then show that it is a r

1.	If the diagonal of a parallelogram are equal ,then show that it is a rectangle
Answer» Equal and parllale both congurent By doing triangle ABD and ABC congruent by SSS and then by cpct angleA and B equal the by co interior angle sum property sum will be 180 therefore one angle let A would come 90degree .Hence it is a rectangle as we know that a parallelogram with one angle 90 degree is a reactangle.

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