Solve this:
Q.3. Which of the following statement(s) is/are correct?
(A) A parallelogram in which two adjacent angles are equal is a rectangle.
(B) A quadrilateral in which both pairs of opposite angles are equal is a parallelogram.
(C) In a parallelogram, the maximum number of acute angles can be two.
(D) All of these
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/what-are-the-properties-of-a-parallelogram/quadrilaterals/481040
https://www.meritnation.com/ask-answer/question/prepare-a-table-with-all-the-properties-of-parallelogram-sq/practical-geometry/7893679
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https://www.meritnation.com/ask-answer/question/what-are-the-properties-of-a-parallelogram/quadrilaterals/481040
https://www.meritnation.com/ask-answer/question/prepare-a-table-with-all-the-properties-of-parallelogram-sq/practical-geometry/7893679
Regards