Q18 of 160 Page 144

A quadrilateral whose opposite sides and all angles are equal is a

A rectangle is a quadrilateral whose opposite sides and all angles are equal. It is also applicable for square but it is a superior form of rectangle whose all sides are equal.

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If two adjacent angles of a parallelogram are (5x-5)° and (10x + 35)°, then the ratio of these angles is

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A quadrilateral whose all sides are equal, opposite angles are equal and the diagonals bisect each other at right angles is a ______.

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A quadrilateral whose all sides, diagonals and angles are equal is a

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How many diagonals does a hexagon have?