Question

if diagonals of a quadrilateral are equal

Answer 1

n a parallelogram, opposite sides are equal, opposite angles are equal and diagonals bisect each other. In a rhombus, diagonals intersect at right angles. In a rectangle diagonals are equal. A quadrilateral can be constructed uniquely if the lengths of its four sides and a diagonal is given.

Answer 2

then the quadrilatral can either be a square, rectangle or a parallelogram.

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