Rhombus and squares are ........................ to each other.

The two tangents drawn to a circle at the end points of a diameter are ......... to each other.

Like poles of bar magnet ...... each other and its unlike poles ...... each other.

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

Show that the diagonals of a square are equal and right bisectors of each other.

The lines of fllow and streamlines are coincide each other in …… flow.

Prove that the bisectors of two opposite angles of a parallelogram are parallel to each other.

Show that the diagonals of a rhombus are perpendicular to each other.

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

A charge Q is place at each of the opposite corners of a square. A charge q is placed at each of the other two corners. If the net electrical force on q is zero, then q//Q equals: