Question

a rectangle is a parallelogram. give reason.

Answer 1

A rectangle is considered a special case of a parallelogram because: Aparallelogram is a quadrilateral with 2 pairs of opposite, equal and parallel sides. A rectangle is a quadrilateral with 2 pairs of opposite, equal and parallel sides BUT ALSO forms right angles between adjacent 
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Answer 2

yes,rectangle is a parallelogram because ABCD is a quadrilateral in which AB parallel DC,AD parallel BC and angle A equal to Angle B equal to angle C equal to angle D equal to 90 degree so, rectangle is a parallelogram. ...