Question

In quadrilateral ABCD angle A + angle d is equal to 180 what is special name can be given to this quadrilateral​

Answer 1

Answer:

parallelogram

Step-by-step explanation:

hope it will help you

Answer 2

Answer:

The quadrilateral ABCD is a parallelogram.

Step-by-step explanation:

Sum of two adjacent angles are equal to 180°.

Hence, sum of other two adjacent angles is

360-180=180°

So, there are two pairs of adjacent angles which are supplementary. This property is only seen in parallelograms.

Hence we conclude that ABCD is a parallelogram.

Note: This property is also seen in rectangles, rhombuses and squares, but they are all parallelograms as the opposite sides are parallel to one another.

Hope it helps!

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