Prove that line joining the midpoints of opposite sides of a quadrilateral bisect each other.

Show that the lines joining the mid-points of opposite sides of a quadrilateral bisect each other.

Show that the line segments joining the mid- points of opposite sides of a quadrilateral bisects each other.

Show that the line segments joining the mid-points of the opposite sides of a quadrilateral bisect each other.

Prove that the lines joining the middle points of opposite sides of a quadrilateral and the line joining the middle points of its diagonals meet in a point and bisect one another.

Show that the line segments joining the mid- points of the opposite sides of a quadrilateral bisect each other

Prove that the lines joining the middle points of the opposite sides of a quadrilateral and the join of the middle points of its diagonals meet in a point and bisect one another

Using vector method,prove that the line segments joining the mid-points of the adjacent sides of a quadrilateral taken in order form a parallelogram.

The line segments joining the midpoints of the adjacent sides of a quadrilateral form

If the diagonals of a quadrilateral bisect each other, it is a __________.