Below is a quadrilateral:
Is it possible that it is a parallelogram?
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Below is a quadrilateral:
Is it possible that it is a parallelogram?
Let's review the property: a quadrilateral in which two pairs of opposite angles are equal is a parallelogram.
From the data in the drawing, it follows that:
Therefore, the quadrilateral is actually a parallelogram.
Yes
It is possible to draw a quadrilateral that is not a rectangle, with the sum of its two adjacent angles equaling 180?
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