The correct option is A 22 cm
Area of PQRS = Area of ABCD + Aea of shaded region
= (10 + 20) cm2
= 30 cm2
Area of rectangle PQRS = 30 cm2
and its breadth = 5 cm
We know that,
Area of a rectangle = Length x breadth
So, Length of PQRS = AreaBreadth
= 305=6 cm
Perimeter of rectangle PQRS
= 2×(length + breadth)
= 2 x (6+5)
= 2 x 11
= 22 cm
Therefore, perimeter of PQRS is 22 cm.