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Which one of the following is not a property of a rectangle?

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The sum of all the interior angles is equal to 180°.

A rectangle with side lengths a and b has the perimeter as 2a+2b units.

4) A rectangle is a quadrilateral.

The diagonals bisect each other.

answer is A.

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Detailed Solution

The Sum of all interior angles of a quadrilateral is 360° and the rectangle is a quadrilateral.

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