Prove that the line segments joints joining the mid-points of the adjacent sides of a quadrilateral from a parallelogram.

Prove that the line segments joining the midpoints of the adjacent sides of a quadrilateral form a parallelogram.

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.

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

Prove that the figure formed by joining the points of the adjacent sides of a quadrilateral parallelogram.

The diagonals of a quadrilateral intersect at right angles. Prove that the figure obtained by joining the mid-points of the adjacent sides of the quadrilateral is a rectangle.

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

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

Prove that the figure formed by joining the mid-points of the pairs of consecutive sides of a quadrilateral is a parallelogram.