CDS Model Paper 1 Mathematics

Let PQRS be a rectangle and ABCD be a rhombus which is formed by joining the mid points of a rectangle. Given Area of rhombus =2 unit.
But Area =

1

2

×d1×d2=2
d1d2=2×2=4 units
where d1= diagonal ACd2= diagonal BD
But AC= Breadth of rectangle
BD= length of rectangle
⇒ Area of rectangle =AC×BD
=d1×d2
=4 units
,∴ option (b) is correct.