The area of each square in the given figure is 4 cm2. The perimeter of the whole figure will be
Area of square = side × side
∴ side × side = 4 cm2
⇒ side = 2 cm.
Now, looking at the figure we can say that:
Length of the bigger rectangle = 5 × 2 cm = 10 cm
And Breadth of the bigger rectangle = 2 × 2 cm = 4 cm
∴ Perimeter of the bigger rectangle = 2 × ( Length + Breadth) = 2 × (10 + 4) = 28 cm.