Question

if a parallelogram has all sides equal with one angle equal to 90°​

Answer 1

Answer:

Then it is Square

Step-by-step explanation:

Answer 2

Step-by-step explanation:

From the above theorem, it can be derived that if one angle of a parallelogram is equal to 90 degrees, then all four angles are equal to 90 degrees. Therefore, it will become a rectangle. If one angle is a 90 degrees, then all four angles 90 degrees: Since, the adjacent sides are supplementary.

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