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22 August, 05:20

In a parallelogram ABCD < D is a right angle. Is ABCD a rectangle?

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Answers (2)
  1. 22 August, 08:34
    0
    yes

    Step-by-step explanation:

    becoz D=90° as all side of rectangle have 90°
  2. 22 August, 09:06
    0
    ABCD is a rectangle.

    Step-by-step explanation:

    In Euclidean geometry, a parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

    So rectangle is a parallelogram and a rectangle has 4 angles. All 4 angles are right angles. Right angles = 90 degrees. Therefore, parallelogram ABCD is a rectangle.
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