Question

*Which of these options must be true for a parallelogram to be a rhombus?*

1) Its adjacent sides must be equal
2) Its adjacent angles must be equal
3) One of the angles must be 90°
4) All the angles must be 90°

please answer my question if anyone answers my question first i will add he or she to brain list ​

Answer 1

Answer:

1,2,4

Step-by-step explanation:

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Answer 2

Answer:

Literary Works of the Medieval and Archaeological Remains are the Sources of Medieval Indian History. The literary works of the medieval periods which include the Delhi Sultanate and the Mughal Empire. Archaeological remains of Delhi Sultanate and Mughal Empire.