Question

please solve this question

Answer 1

hence the problem is solved

Answer 2

if ps parallel qr then by converse of mid point theorem
d is mid point of ps and b is of qr..then similarly a is mid point of pq and c is of sr
now we know that is mid poits of all four sides were join together they form a rhombus or a square and the area of that square or rhombus is half the area of quadrilateral.