Prove that the diagonals of a square are equal.

Show that the diagonals of a square are equal and bisect each other at right angles

Prove that if the diagonals of a quadrilateral bisect each other at right angles, then the quadrilateral is a rhombus.

Show that if the diagonals of a quadrilateral are qual and bisect each other at right angles, then it is a square

Say True or False: The diagonals of a square are perpendiculare to one another.

If a pair of opposite sides of a cyclic quadrialteral are equal, prove that its diagonals are also equal.

Which of the following statements are True or False : If the diagonals of a parallelogram are equal then it is a rectangle.

The experimities of the diagonal of a square are (1,1) , (-2,-1) .Obtain the other two vertices and the equation of the other diagonal .