Question

. The Quadrilateral formed by joining the mid-points of the sides of a quadrilateral ABCD taken in
Order, is a square only if

a) ABCD is a Rhombus b) ABCD is a parallelogram
c) diagonals of ABCD are equal and perpendicular d) diagonals of ABCD are equal​

Answer 1

d. if daigonals are equal of quadrilateral abcd